| 2137f5d3b8e8e04cff06194cacd0f6357495ac94 |
|
12-Aug-2014 |
Peter Griffin <peter.griffin@linaro.org> |
mmc: remove .owner field for drivers using module_platform_driver
This patch removes the superflous .owner field for drivers which
use the module_platform_driver API, as this is overriden in
platform_driver_register anyway.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
|
| 221414db1934c1c883501998f510bb75acfbaa51 |
|
07-Aug-2014 |
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> |
mmc: sdhci-s3c: fix runtime PM handling on sdhci_add_host() failure
Runtime Power Management handling for the sdhci_add_host() failure
case in sdhci_s3c_probe() should match the code in sdhci_s3c_remove()
(which uses pm_runtime_disable() call which matches the earlier
pm_runtime_enable() one). Fix it.
This patch fixes "BUG: spinlock bad magic on CPU#0, swapper/0/1" and
"Unbalanced pm_runtime_enable!" warnings.
>From the kernel log:
...
[ 1.659631] s3c-sdhci 12530000.sdhci: sdhci_add_host() failed
[ 1.665096] BUG: spinlock bad magic on CPU#0, swapper/0/1
[ 1.670433] lock: 0xea01e484, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
[ 1.677895] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.16.0-next-20140804-00008-ga59480f-dirty #707
[ 1.687037] [<c0013ae4>] (unwind_backtrace) from [<c0010d70>] (show_stack+0x10/0x14)
[ 1.694740] [<c0010d70>] (show_stack) from [<c04050c8>] (dump_stack+0x68/0xb8)
[ 1.701948] [<c04050c8>] (dump_stack) from [<c0052558>] (do_raw_spin_lock+0x15c/0x1a4)
[ 1.709848] [<c0052558>] (do_raw_spin_lock) from [<c040a630>] (_raw_spin_lock_irqsave+0x20/0x28)
[ 1.718619] [<c040a630>] (_raw_spin_lock_irqsave) from [<c030d7d0>] (sdhci_do_set_ios+0x1c/0x5cc)
[ 1.727464] [<c030d7d0>] (sdhci_do_set_ios) from [<c030ddfc>] (sdhci_runtime_resume_host+0x50/0x104)
[ 1.736574] [<c030ddfc>] (sdhci_runtime_resume_host) from [<c02462dc>] (pm_generic_runtime_resume+0x2c/0x40)
[ 1.746383] [<c02462dc>] (pm_generic_runtime_resume) from [<c0247898>] (__rpm_callback+0x34/0x70)
[ 1.755233] [<c0247898>] (__rpm_callback) from [<c02478fc>] (rpm_callback+0x28/0x88)
[ 1.762958] [<c02478fc>] (rpm_callback) from [<c02486f0>] (rpm_resume+0x384/0x4ec)
[ 1.770511] [<c02486f0>] (rpm_resume) from [<c02488b0>] (pm_runtime_forbid+0x58/0x64)
[ 1.778325] [<c02488b0>] (pm_runtime_forbid) from [<c030ea70>] (sdhci_s3c_probe+0x4a4/0x540)
[ 1.786749] [<c030ea70>] (sdhci_s3c_probe) from [<c02429cc>] (platform_drv_probe+0x2c/0x5c)
[ 1.795076] [<c02429cc>] (platform_drv_probe) from [<c02415f0>] (driver_probe_device+0x114/0x234)
[ 1.803929] [<c02415f0>] (driver_probe_device) from [<c024179c>] (__driver_attach+0x8c/0x90)
[ 1.812347] [<c024179c>] (__driver_attach) from [<c023ffb4>] (bus_for_each_dev+0x54/0x88)
[ 1.820506] [<c023ffb4>] (bus_for_each_dev) from [<c0240df8>] (bus_add_driver+0xd8/0x1cc)
[ 1.828665] [<c0240df8>] (bus_add_driver) from [<c0241db8>] (driver_register+0x78/0xf4)
[ 1.836652] [<c0241db8>] (driver_register) from [<c00088a4>] (do_one_initcall+0x80/0x1d0)
[ 1.844816] [<c00088a4>] (do_one_initcall) from [<c059ac94>] (kernel_init_freeable+0x108/0x1d4)
[ 1.853503] [<c059ac94>] (kernel_init_freeable) from [<c0401300>] (kernel_init+0x8/0xe4)
[ 1.861568] [<c0401300>] (kernel_init) from [<c000e538>] (ret_from_fork+0x14/0x3c)
[ 1.869582] platform 12530000.sdhci: Driver s3c-sdhci requests probe deferral
...
[ 1.997047] s3c-sdhci 12530000.sdhci: Unbalanced pm_runtime_enable!
...
[ 2.027235] s3c-sdhci 12530000.sdhci: sdhci_add_host() failed
[ 2.032884] platform 12530000.sdhci: Driver s3c-sdhci requests probe deferral
...
Tested on Hardkernel's Exynos4412 based ODROID-U3 board.
Fixes: 9f4e8151dbbc ("mmc: sdhci-s3c: Enable runtime power management")
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
|
| 11bc9381b277a65ea4b3fe994e658f4a78512139 |
|
26-May-2014 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: sdhci-s3c: use mmc_of_parse and remove the card_tasklet
Fix the compile error.
(Removed the card_tasklet at "mmc: sdhci: push card_tasklet into treaded irq handler")
drivers/mmc/host/sdhci-s3c.c: In function ‘sdhci_s3c_notify_change’:
drivers/mmc/host/sdhci-s3c.c:402:25: error: ‘struct sdhci_host’ has no member named ‘card_tasklet’
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 96d7b78cfc2fd6b1539704e2d33239dbaa097cc4 |
|
25-Apr-2014 |
Russell King <rmk+kernel@arm.linux.org.uk> |
mmc: sdhci: convert sdhci_set_uhs_signaling() into a library function
Add sdhci_set_uhs_signaling() and always call the set_uhs_signaling
method. This avoids quirks being added into sdhci_set_uhs_signaling().
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Markus Pargmann <mpa@pengutronix.de>
Tested-by: Stephen Warren <swarren@nvidia.com>
[Ulf Hansson] Resolved conflict
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 1771059cf5f9c09e37ef6315df8acf120f2642fc |
|
25-Apr-2014 |
Russell King <rmk+kernel@arm.linux.org.uk> |
mmc: sdhci: convert sdhci_set_clock() into a library function
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Markus Pargmann <mpa@pengutronix.de>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 1650d0c71a209c7d6bdddda8a7e187c537ceb71a |
|
25-Apr-2014 |
Russell King <rmk+kernel@arm.linux.org.uk> |
mmc: sdhci: move setting mmc->actual_clock into set_clock handlers
Move the setting of mmc->actual_clock to zero into the set_clock
handlers themselves. This will allow us to clean up the calling
logic for the set_clock() method, and turn sdhci_set_clock() into
a library function.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Markus Pargmann <mpa@pengutronix.de>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 373073efd06528867df963724a93f29c7d5534d0 |
|
25-Apr-2014 |
Russell King <rmk+kernel@arm.linux.org.uk> |
mmc: sdhci: move setting host->clock into sdhci_do_set_ios()
We don't need implementations to do this, since the only time it's
necessary is when we change the clock, and the only place that happens
is in sdhci_do_set_ios(). So, move it there, and remove it from the
iMX platform backend.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Markus Pargmann <mpa@pengutronix.de>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 03231f9b781f24205c0af0398ce3cbef70090939 |
|
25-Apr-2014 |
Russell King <rmk+kernel@arm.linux.org.uk> |
mmc: sdhci: convert reset into a library function
Rather than having platform_reset_enter/platform_reset_exit methods,
turn the core of the reset handling into a library function which
platforms can call at the appropriate moment in their (new) reset
method.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Markus Pargmann <mpa@pengutronix.de>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 2317f56c055fcad524bf6a873df48a754e7ebc4d |
|
25-Apr-2014 |
Russell King <rmk+kernel@arm.linux.org.uk> |
mmc: sdhci: convert generic bus width setup to library function
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Markus Pargmann <mpa@pengutronix.de>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 3beef62479bef4309a220f7ca5415d9a66c0b0cb |
|
08-Mar-2014 |
Axel Lin <axel.lin@ingics.com> |
mmc: sdhci-s3c: Remove unused define for NUM_GPIOS
NUM_GPIOS is not used after e19499ae10903 ("mmc: sdhci-s3c: let device
core setup the default pin configuration"). Thus remove it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 2200300060ada5e32136d597502e446ac2ef2a27 |
|
11-Jan-2014 |
Tomasz Figa <tomasz.figa@gmail.com> |
mmc: sdhci-s3c: Do not allow frequencies higher than requested
This patch modifies sdhci_s3c_consider_clock() to fail if bus clock
being considered can not provide frequency lower or equal requested,
instead of returning the lowest supported.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by; Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 3ac147facfbd234acf3a990968de9746a399f133 |
|
11-Jan-2014 |
Tomasz Figa <tomasz.figa@gmail.com> |
mmc: sdhci-s3c: Fix handling of bus clock switching
Currently the driver assumes at probe that controller is configured for
last valid enumerated bus clock. This assumption is completely wrong, as
there is no way to ensure such configuration until the hardware gets
first configured (by calling sdhci_s3c_set_clock()).
This patch modifies the driver to set current clock at probe to unknown
state (represented by negative value) and make sure that the hardware
gets actually configured to selected clock in sdhci_s3c_set_clock().
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by; Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 222a13c5d0c67333e443a1ea2fcc746ad61f8d68 |
|
11-Jan-2014 |
Tomasz Figa <tomasz.figa@gmail.com> |
mmc: sdhci-s3c: Simplify min/max clock calculation
This patch reimplements functions calculating minimum and maximum clock
rates to leverage clock rate cache introduced by previous patches.
In addition, the calculation is simplified to just comparing input
clock rates (max case) or input clock rates divided by maximum divisor
(min case), which is basically what the original code did, but with much
more unnecessary work.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by; Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 8f4b78d9bb042aacce43e0213c727da861a128f6 |
|
11-Jan-2014 |
Tomasz Figa <tomasz.figa@gmail.com> |
mmc: sdhci-s3c: Use correct condition to check for clock presence
IS_ERR() must be used to make sure that not a valid clock was returned
by clk_get() and company.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by; Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 6eb28bdcb27249ca9981fb063d3f2485fd344500 |
|
11-Jan-2014 |
Tomasz Figa <tomasz.figa@gmail.com> |
mmc: sdhci-s3c: Cache bus clock rates
To fix scheduling while atomic happening in sdhci_s3c_set_clock() caused
by calling clk_get_rate() that might sleep, this patch modifies the
driver to cache rates of all bus clocks at probe time and then only use
those cache values.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by; Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 8880a4a526340335403696f30daf4e05a413f3bd |
|
11-Jan-2014 |
Tomasz Figa <tomasz.figa@gmail.com> |
mmc: sdhci-s3c: Use shifts to divide by powers of two
Current implementation of sdhci_s3c_consider_clock() is highly
inefficient due to multiple integer divisions by variable performed in a
loop. Since only divisors that are powers of two are considered, this
patch replaces them with respective shifts, removing all the integer
divisions.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by; Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <chris@printf.net>
|
| 285e244fef2463d2f6ec07488a0c86e709f6eb22 |
|
02-Aug-2013 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: sdhci-s3c: initialize host->quirks2 for using quirks2
In order to use the quirks2, initialized the host->quirks2.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <Kyungmin.park@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 7ef2a5e2f72325fd83c6e1ab76b139ca31c7f8ed |
|
02-Aug-2013 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: sdhci-s3c: fix the wrong register value, when clock is disabled
When use the QUIRK_NONSTANDARD_CLOCK, then never set to 0 at clock control
register. This patch fixes this problem.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 113a87f868b2f2e086790a68e8b9e41d8f0c3295 |
|
06-May-2013 |
Jingoo Han <jg1.han@samsung.com> |
mmc: remove unnecessary platform_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| cc014f3e29e15140e35e14fa194034baee92df2a |
|
04-Mar-2013 |
Arnd Bergmann <arnd@arndb.de> |
mmc: sdhci-s3c: remove platform dependencies
plat/regs-sdhci.h is not used anywhere but in the sdhci-s3c
driver, so it can become a local file there and all other
inclusions removed.
plat/sdhci.h is used only to define the platform devices,
and with the exception of the platform_data structure not
needed by the driver, so we can split out the platform_data
definition instead and leave the rest to platform code.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Chris Ball <cjb@laptop.org>
|
| e19499ae10903807acbaa07a28d4b56d508ac339 |
|
06-Mar-2013 |
Thomas Abraham <thomas.abraham@linaro.org> |
mmc: sdhci-s3c: let device core setup the default pin configuration
With device core now able to setup the default pin configuration,
the call to devm_pinctrl_get_select_default can be removed. And
the pin configuration code based on the deprecated Samsung specific
gpio bindings is also removed.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 3aaf7ba7fda3cda285a407ad0a2acf1b183342fa |
|
11-Feb-2013 |
Jingoo Han <jg1.han@samsung.com> |
mmc: sdhci-s3c: Use devm_clk_get()
Use devm_clk_get() rather than clk_get() to make cleanup paths
more simple.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 7bc088d38f92f58df97e1cd9a8430331ee5491bb |
|
21-Jan-2013 |
Sascha Hauer <s.hauer@pengutronix.de> |
mmc: sdhci: rename platform_8bit_width to platform_bus_width
The 8bit in the function name is misleading. When set, it will be
used to set the bus width, regardless of whether 8bit or another
bus width is requested, so change the function name to
platform_bus_width.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| a3e2cd7f24ba7521169943ace3d14b567487ea29 |
|
21-Jan-2013 |
Thierry Reding <thierry.reding@avionic-design.de> |
mmc: Convert to devm_ioremap_resource()
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.
devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Chris Ball <cjb@laptop.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 4577f77ba76127cd9e72e06f44d743894d34ac8b |
|
04-Dec-2012 |
Sachin Kamat <sachin.kamat@linaro.org> |
mmc: sdhci-s3c: Fix compilation warning
'sc' is used only when CONFIG_PM_RUNTIME is defined. Hence define it
conditionally.
Silences the following warning:
drivers/mmc/host/sdhci-s3c.c: In function ‘sdhci_s3c_notify_change’:
drivers/mmc/host/sdhci-s3c.c:378:20: warning: unused variable ‘sc’ [-Wunused-variable]
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| b96efccb8fc9939605599e5b2c026644973cc92d |
|
16-Nov-2012 |
Tomasz Figa <t.figa@samsung.com> |
mmc: host: sdhci-s3c: Add support for pinctrl
This patch adds support for pin configuration using pinctrl subsystem
to the sdhci-s3c driver.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| b1b8fea94f4c71b5503b7e29974635121f44b302 |
|
25-Nov-2012 |
Tomasz Figa <t.figa@samsung.com> |
mmc: host: sdhci-s3c: Use devm_gpio_request to request GPIOs
The set of GPIO pins used by sdhci-s3c driver varies between
configurations, such as card detect method, pinctrl availability, etc.
This overly complicates the code requesting and freeing GPIO pins, which
must check which pins are used, when freeing them.
This patch modifies the sdhci-s3c driver to use devm_gpio_request to
free requested pins automatically after unbinding the driver.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| ab5023efdcfa87512663aca120245b0fec8511eb |
|
20-Nov-2012 |
Tushar Behera <tushar.behera@linaro.org> |
mmc: sdhci-s3c: Use NULL instead of 0 for pointers
The third argument for of_get_property() is a pointer, hence pass
NULL instead of 0.
Fixes the following sparse warning:
sdhci-s3c.c:452:48: warning: Using plain integer as NULL pointer
sdhci-s3c.c:457:52: warning: Using plain integer as NULL pointer
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| fe007c02f9659f5c0ae6f3ceaf45076df92cc88e |
|
18-Nov-2012 |
Heiko Stübner <heiko@sntech.de> |
mmc: sdhci-s3c: fix missing clock for gpio card-detect
2abeb5c5ded2 ("Add clk_(enable/disable) in runtime suspend/resume")
added the capability to stop the clocks when the device is runtime
suspended, but forgot to handle the case of the card-detect using
an external gpio.
Therefore in the case that runtime-pm is enabled, start the io-clock
when a card is inserted and stop it again once it is removed.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 6e0ee714fdab0568c3487455951dea2673e9557f |
|
19-Nov-2012 |
Bill Pemberton <wfp5p@virginia.edu> |
mmc: remove use of __devexit
CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Cc: Venkatraman S <svenkatr@ti.com>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: Bruce Chang <brucechang@via.com.tw>
Cc: Harald Welte <HaraldWelte@viatech.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| c3be1efd41a97f93be390240387d356a07b664c7 |
|
19-Nov-2012 |
Bill Pemberton <wfp5p@virginia.edu> |
mmc: remove use of __devinit
CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Chris Ball <cjb@laptop.org>
Cc: Manuel Lauss <manuel.lauss@gmail.com>
Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Cc: Venkatraman S <svenkatr@ti.com>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: Bruce Chang <brucechang@via.com.tw>
Cc: Harald Welte <HaraldWelte@viatech.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 0433c14356702e296f474f77ebd42f0a9d9a5487 |
|
19-Nov-2012 |
Bill Pemberton <wfp5p@virginia.edu> |
mmc: remove use of __devexit_p
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Chris Ball <cjb@laptop.org>
Cc: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Cc: Venkatraman S <svenkatr@ti.com>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: Bruce Chang <brucechang@via.com.tw>
Cc: Harald Welte <HaraldWelte@viatech.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
| 0aa55c2367f082876f92660312214cd20c6a024b |
|
30-Oct-2012 |
Seungwon Jeon <tgih.jun@samsung.com> |
mmc: sdhci-s3c: fix the card detection in runtime-pm
If host clock is disabled, host cannot detect a card in case of using
CD internal for detection.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 0f310a057feb91ff17a7f4d5f8405e73035084e2 |
|
03-Oct-2012 |
Thomas Abraham <thomas.abraham@linaro.org> |
mmc: sdhci-s3c: use clk_prepare_enable and clk_disable_unprepare
Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare
calls as required by common clock framework.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 2abeb5c5ded2e7f7d288058426fb0ae852adc77f |
|
21-Sep-2012 |
Chander Kashyap <chander.kashyap@gmail.com> |
mmc: sdhci-s3c: Add clk_(enable/disable) in runtime suspend/resume
Perform clock disable/enable in runtime suspend/resume.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 5feb54a1ab91a237e247c013b8c4fb100ea347b1 |
|
19-Sep-2012 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: sdhci-s3c: fix the wrong number of max bus clocks
We can use up to four bus-clocks; but on module remove, we didn't
disable the fourth bus clock.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 387a8cbdf84d5c417d24eabfdf9fe4e0b94458da |
|
14-Sep-2012 |
Chander Kashyap <chander.kashyap@linaro.org> |
mmc: sdhci-s3c: Fix crash on module insertion for second time
If sdhci-s3c driver is built as module, it gives following error if inserted
again after removing. This was happening as pm_runtime_use_autosuspend() is
called in sdhci_s3c_probe() function but in sdhci_s3c_remove() its
complementary pm_runtime_dont_use_autosuspend() is not called.
BUG: spinlock bad magic on CPU#1, insmod/955
lock: 0xee771368, .magic: 00000000, .owner: insmod/955, .owner_cpu: 1
[<c00147e0>] (unwind_backtrace+0x0/0xf8) from [<c0136b40>] (do_raw_spin_unlock+0xa4/0xe4)
[<c0136b40>] (do_raw_spin_unlock+0xa4/0xe4) from [<c01be508>] (_raw_spin_unlock_irqrestore+0xc/0x38)
[<c01be508>] (_raw_spin_unlock_irqrestore+0xc/0x38) from [<c01a9334>] (sdhci_runtime_suspend_host+0x54/0x80)
[<c01a9334>] (sdhci_runtime_suspend_host+0x54/0x80) from [<bf0060a8>] (sdhci_s3c_runtime_suspend+0x14/0x38 [sdhci_s3c])
[<bf0060a8>] (sdhci_s3c_runtime_suspend+0x14/0x38 [sdhci_s3c]) from [<c016cb00>] (pm_generic_runtime_suspend+0x2c/0x40)
[<c016cb00>] (pm_generic_runtime_suspend+0x2c/0x40) from [<c0170090>] (__rpm_callback+0x70/0x98)
[<c0170090>] (__rpm_callback+0x70/0x98) from [<c01703f0>] (rpm_suspend+0xf0/0x534)
[<c01703f0>] (rpm_suspend+0xf0/0x534) from [<c0171670>] (__pm_runtime_suspend+0x5c/0x74)
[<c0171670>] (__pm_runtime_suspend+0x5c/0x74) from [<c016d018>] (pm_generic_runtime_idle+0x44/0x4c)
[<c016d018>] (pm_generic_runtime_idle+0x44/0x4c) from [<c0170090>] (__rpm_callback+0x70/0x98)
[<c0170090>] (__rpm_callback+0x70/0x98) from [<c0170984>] (rpm_idle+0xdc/0x18c)
[<c0170984>] (rpm_idle+0xdc/0x18c) from [<c0171608>] (pm_runtime_set_autosuspend_delay+0x30/0x3c)
[<c0171608>] (pm_runtime_set_autosuspend_delay+0x30/0x3c) from [<bf0069c4>] (sdhci_s3c_probe+0x35c/0x52c [sdhci_s3c])
[<bf0069c4>] (sdhci_s3c_probe+0x35c/0x52c [sdhci_s3c]) from [<c016a014>] (platform_drv_probe+0x18/0x1c)
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| e684c46876f1d0c1c4964741244a34b6be837b5f |
|
14-Sep-2012 |
Chander Kashyap <chander.kashyap@linaro.org> |
mmc: sdhci-s3c: Enable only required bus clock
In case of multiple bus clock sources, all the clock sources were
getting enabled. As only one clock source is needed at the time hence
enable only the required bus clock.
This patch does as follows:
1. In sdhci_s3c_probe enable only required bus clock source.
2. Handle the disabling of old bus clock and enables the
best clock selected in sdhci_s3c_set_clock().
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| cd1b00eb24b0b204303211df7ffd1a77a1005824 |
|
23-Aug-2012 |
Thomas Abraham <thomas.abraham@linaro.org> |
mmc: sdhci-s3c: Add device tree support
Add device tree based discovery support for Samsung's sdhci controller.
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 2ad0b2494f83d87046db2c4fe6256546d44b3160 |
|
29-Aug-2012 |
Jingoo Han <jg1.han@samsung.com> |
mmc: sdhci-s3c: fix checkpatch error and warnings
This patch fixes the checkpatch error and warnings listed below:
ERROR: return is not a function, parentheses are not required
WARNING: Prefer pr_err(... to printk(KERN_ERR, ...
WARNING: quoted string split across lines
WARNING: line over 80 characters
WARNING: braces {} are not necessary for single statement blocks
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 81ec1daa118ec9a04c0a907883872ae2996372bd |
|
03-Jun-2012 |
Heiko Stübner <heiko@sntech.de> |
mmc: sdhci-s3c: pass IRQF ONESHOT to request threaded irq
Fix a boot regression in existing kernels causing:
genirq: Threaded irq requested with handler=NULL and !ONESHOT for irq XXX
caused by 1c6c6952 (genirq: Reject bogus threaded irq requests).
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 9f4e8151dbbc4ca4d5dd7792666a50c137102204 |
|
01-Apr-2012 |
Mark Brown <broonie@opensource.wolfsonmicro.com> |
mmc: sdhci-s3c: Enable runtime power management
Since most of the work is already done by the core we just need to add
runtime suspend methods and tell the PM core that runtime PM is enabled
for this device.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| d5e9c02cab60920d5ac16a8244bb6085dc27564f |
|
03-Mar-2012 |
Mark Brown <broonie@opensource.wolfsonmicro.com> |
mmc: sdhci-s3c: Use CONFIG_PM_SLEEP to ifdef system suspend
This matches current best practice as one can have runtime PM enabled
without system sleep and CONFIG_PM is defined for both.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 9bda6da7ff7d35ef757e235aae559e679d3a9493 |
|
09-Mar-2012 |
Julia Lawall <Julia.Lawall@lip6.fr> |
mmc: sdhci-s3c: use devm_ functions
The various devm_ functions allocate memory that is released when a driver
detaches. This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.
By using devm_ioremap, it also removes a potential memory leak, because
there was no call to iounmap in the probe function.
The call to platform_get_resource was moved just to make it closer to the
place where its result it used.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 1d4dc338bb7cbbadcb5a527b1b0e897b5cde1701 |
|
16-Feb-2012 |
Thomas Abraham <thomas.abraham@linaro.org> |
mmc: sdhci-s3c: Keep a copy of platform data and use it
The platform data is copied into driver's private data and the copy is
used for all access to the platform data. This simpifies the addition
of device tree support for the sdhci-s3c driver.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 0d22c77089c86416324d0d87e7ef8cfa931e53cd |
|
01-Apr-2012 |
Thomas Abraham <thomas.abraham@linaro.org> |
mmc: sdhci-s3c: derive transfer width host cap from max_width in platdata
max_width member in platform data can be used to derive the mmc bus transfer
width that can be supported by the controller.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 3119936a289db88cf749143fa5ef6b4a4712e3c0 |
|
16-Feb-2012 |
Thomas Abraham <thomas.abraham@linaro.org> |
mmc: sdhci-s3c: Remove usage of clk_type member in platform data
SDHCI controllers on Exynos4 do not include the sdclk divider as per the
sdhci controller specification. This case can be represented using the
sdhci quirk SDHCI_QUIRK_NONSTANDARD_CLOCK instead of using an additional
enum type definition 'clk_types'.
Hence, usage of clk_type member in platform data is removed and the sdhci
quirk is used. In addition to that, since this qurik is SoC specific,
driver data is introduced to represent controllers on SoC's that require
this quirk.
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Jeongbae Seo <jeongbae.seo@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| c1c4b66dc010bb69456f7f7c25442772bbe54dbd |
|
07-Feb-2012 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: sdhci-s3c: add platform data for the second capability
This patch is added host_caps2 in sdhci-s3c.c
It's necessary that use the second capabilities.
And removed the duplicated host_caps.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
|
| 7003fecbf0c9f7dde75d93ba75e0cb7ddb662749 |
|
14-Dec-2011 |
Jingoo Han <jg1.han@samsung.com> |
mmc: sdhci-s3c: use S3C_SDHCI_CONTROL2 instead of hardcoded offset value
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| fa1773cc5b78faa1ef0ab1ab0f48bce7bc72cec5 |
|
07-Nov-2011 |
Sangwook Lee <sangwook.lee@linaro.org> |
mmc: sdhci-s3c: Add pm_caps into SD/MMC host
sdhci-s3c updates pm_caps from platform data for SDIO PM.
Signed-off-by: Sangwook Lee <sangwook.lee@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| d1f81a64a4250bdd776978be06ae2b8e13ec7471 |
|
25-Nov-2011 |
Axel Lin <axel.lin@gmail.com> |
mmc: convert drivers/mmc/host/* to use module_platform_driver()
This patch converts the drivers in drivers/mmc/host/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Acked-by: David Brown <davidb@codeaurora.org>
Acked-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 4346b6d9c6651121f35ae9e42f240f36a8e56ce6 |
|
03-Nov-2011 |
Rajeshwari Shinde <rajeshwari.s@samsung.com> |
mmc: sdhci-s3c: Use generic clock names for sdhci bus clock options
This patch modifies the driver to stop depending on the clock names
being passed from the platform and switch over to bus clock lookup
using generic clock names.
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
|
| 29495aa04a30c21565243c5b9c028510446d242c |
|
03-Nov-2011 |
Manuel Lauss <manuel.lauss@googlemail.com> |
mmc: sdhci: remove "state" argument from sdhci_suspend_host
Drop the "state" argument from sdhci_suspend_host. Its only user is the
PCI glue; this allows to move all SDHCI glues to use dev_pm_ops instead.
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 524bfca2b42a7c9dc43af13e1592b21dd1ce3fcc |
|
21-Nov-2011 |
Mark Brown <broonie@opensource.wolfsonmicro.com> |
mmc: sdhci-s3c: Remove old and misprototyped suspend operations
Now that the driver is using dev_pm_ops the suspend operations in the
platform_driver structure won't get called so don't need to be there,
and certainly shouldn't be the same function as dev_pm_ops since the
signatures are different.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 326adda53a50ece492c3edaa60afc26fba5e3232 |
|
12-Oct-2011 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: sdhci-s3c: fix potential NULL dereference
sc->clk_bus[ptr] could be NULL.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 6fe47179a07009ee3ee7c8b962966fee420becc8 |
|
13-Sep-2011 |
Thomas Abraham <thomas.abraham@linaro.org> |
mmc: sdhci-s3c: add default controller configuration
The default controller configuration which was previously setup by
platform helper functions is moved into the driver.
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 49bb1e619568ec84785ceb366f07db2a6f0b64cc |
|
26-Aug-2011 |
Girish K S <girish.shivananjappa@linaro.org> |
mmc: sdhci-s3c: Fix mmc card I/O problem
This patch fixes the problem in sdhci-s3c host driver for Samsung Soc's.
During the card identification stage the mmc core driver enumerates for
the best bus width in combination with the highest available data rate.
It starts enumerating from the highest bus width (8) to lowest width (1).
In case of few MMC cards the 4-bit bus enumeration fails and tries
the 1-bit bus enumeration. When switched to 1-bit bus mode the host driver
has to clear the previous bus width setting and apply the new setting.
The current patch will clear the previous bus mode and apply the new
mode setting.
Signed-off-by: Girish K S <girish.shivananjappa@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 55156d240a4d41d47310278c5139e24517f1c65b |
|
29-Jul-2011 |
Mark Brown <broonie@opensource.wolfsonmicro.com> |
mmc: sdhci-s3c: Fix build for header change
A header change has removed an implicit inclusion of module.h, breaking
the build due to the use of THIS_MODULE. Fix that.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 7199e2b61d715c5e8901ff32513d2b80db8d3737 |
|
12-Jul-2011 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: sdhci-s3c: add BROKEN_ADMA_ZEROLEN_DESC quirk
Samsung SoCs need to set BROKEN_ADMA_ZEROLEN_DESC.
(If ADMA operation is more than 65535, maybe set by zero.)
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 65d13516b2358c38ac56a5f83e989a6837dcf825 |
|
29-Jun-2011 |
Wonil Choi <wonil22.choi@samsung.com> |
mmc: sdhci-s3c: Fix return value in sdhci_s3c_suspend/resume()
Signed-off-by: Wonil Choi <wonil22.choi@samsung.com>
Signed-off-by: Minho Ban <mhban@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 732f0e31db03c84005578927ed9d4e996c3c0020 |
|
29-Oct-2010 |
Kyungmin Park <kyungmin.park@samsung.com> |
mmc: sdhci-s3c: Auto CMD12 support
Samsung SDHCI host controller supports the Auto CMD12.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 548f07d2a36a4b085c059edb25edb3cd8d71fe3e |
|
12-Jan-2011 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: sdhci-s3c: add platform_8bit_width() hook
We have 8-bit width support but is not a v3 controller.
So we need platform_8bit_width() to support 8-bit buswidth.
Also we need MMC_CAP_8_BIT_DATA, so we add it in platdata.
This gets 8-bit support working again on s3c, after we previously
disabled 8-bit by default on non-v3 controllers.
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 253e0a7c3dc4bbbc69fc6bfd7c01bc4c9397a5e5 |
|
08-Oct-2010 |
Jeongbae Seo <jeongbae.seo@samsung.com> |
mmc: sdhci-s3c: Support controllers with no internal clock divider
This patch supports controllers with no internal clock divider in SDHCI,
such as the s5pc210 board. The external clock divider can be used to
make a proper clock because SDHCI doesn't support internal clock divider
by itself.
If external clock divider type is selected, some functions related
to clock control will be overrided by other functions.
The current clock control index is added to let you know which
clock bus is used for SDHCI when overriding functions.
Checking functions are added into sdhci_s3c_consider_clock, because
the clock divider step is different from that of host controller.
Signed-off-by: Jeongbae Seo <jeongbae.seo@samsung.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| b3824f2c6f16ef19060a53ef9345a124de175098 |
|
08-Oct-2010 |
Jeongbae Seo <jeongbae.seo@samsung.com> |
mmc: sdhci-s3c: Support additional host capabilities
This patch adds support for additional host capabilities like SD/MMC
high speed, SDHCI bus width, etc.
Signed-off-by: Jeongbae Seo <jeongbae.seo@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 9320f7cbbdd5febf013b0e91db29189724057738 |
|
23-Sep-2010 |
Marek Szyprowski <m.szyprowski@samsung.com> |
mmc: sdhci-s3c: fix NULL ptr access in sdhci_s3c_remove
If not all clocks have been defined in platform data, the driver will
cause a null pointer dereference when it is removed. This patch fixes
this issue.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| 06fe577f841f383b2d4f743cfb74fac7f6468353 |
|
20-Sep-2010 |
Marek Szyprowski <m.szyprowski@samsung.com> |
mmc: sdhci-s3c: fix incorrect spinlock usage after merge
In the commit f522886e202a34a2191dd5d471b3c4d46410a9a0 a merge conflict
in the sdhci-s3c driver been fixed. However the fix used incorrect
spinlock operation - it caused a race with sdhci interrupt service. The
correct way to solve it is to use spin_lock_irqsave/irqrestore() calls.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
|
| f522886e202a34a2191dd5d471b3c4d46410a9a0 |
|
19-Aug-2010 |
Kyungmin Park <kyungmin.park@samsung.com> |
drivers/mmc/host/sdhci-s3c.c: use the correct mutex and card detect function
There's some merge problem between sdhic core and sdhci-s3c host. After
mutex is changed to spinlock. It needs to use use spin lock functions and
use the correct card detection function.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 17866e14f3a4f219e94f1374ece7226479418ff8 |
|
11-Aug-2010 |
Marek Szyprowski <m.szyprowski@samsung.com> |
sdhci-s3c: add support for new card detection methods
On some Samsung SoCs not all SDHCI controllers have card detect (CD) line.
For some embedded designs it is not even needed, because ususally the
device (like SDIO flash memory or wifi controller) is permanently wired to
the controller. There are also systems which have a card detect line
connected to some of the external interrupt lines or the presence of the
card depends on some other actions (like enabling a power regulator).
This patch adds support for all these cases. The following card detection
methods are possible:
1. internal sdhci host card detect line
2. external event
3. external gpio interrupt
4. no card detect line, controller will poll for the card
5. no card detect line, card is permanently wired to the controller
(once detected host won't poll it any more)
By default, all existing code would use method #1, what is compatible with
the previous version of the driver.
In case of external event, two callbacks must be provided in platdata:
ext_cd_init and ext_cd_cleanup. Both of them get a callback to a function
that notifies the s3c-sdhci host contoller as their argument. That
callback function should be called from the even dispatcher to let host
notice the card insertion/removal.
In case of external gpio interrupt, a gpio pin number must be provided in
platdata (ext_cd_gpio parameter), as well as the information about the
polarity of that gpio pin (ext_cd_gpio_invert). By default
(ext_cd_gpio_invert == 0) gpio value 0 means 'card has been removed', but
this can be changed to 'card has been removed' when ext_cd_gpio_invert ==
1.
This patch adds all required changes to sdhci-s3c driver.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| a1d5646005af1247d6ae78434bb4db15b07a07b2 |
|
11-Aug-2010 |
Marek Szyprowski <m.szyprowski@samsung.com> |
sdhci-s3c: enable SDHCI_QUIRK_NO_HISPD_BIT quirk
This patch enables SDHCI_QUIRK_NO_HISPD_BIT on Samsung SDHCI driver. This
solves detection problems with some external SD cards. This change has
been tested on S5PC100 and S5PC110. It has no inpact on driver speed.
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| ce5f036bbbfc6c21d7b55b8fdaa2e2bd56392d94 |
|
11-Aug-2010 |
Marek Szyprowski <m.szyprowski@samsung.com> |
sdhci-s3c: add support for the non standard minimal clock value
S3C SDHCI host controller can change the source for generating mmc clock.
By default host bus clock is used, what causes some problems on machines
with 133MHz bus, because the SDHCI divider cannot be as high get proper
clock value for identification mode. This is not a problem for the
controller, because it can generate lower frequencies from other clock
sources. This patch changes sdhci driver to use get_min_clock() call if
it has been provided.
This fixes the flood of the following warnings on Samsung S5PV210 SoCs:
mmc0: Minimum clock frequency too high for identification mode
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 3fe42e077f65351503f5004031549db330bb105e |
|
11-Aug-2010 |
Hyuk Lee <hyuk1.lee@samsung.com> |
sdhci-s3c: add SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK quirk
On Samsung's SDMMC hosts the timeout clock is derivied from the SD Clock
which is set dynamically. So checked SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK
quirk and removed 'sdhci_s3c_get_timeout_clk' callback which doesn't need
any more.
Signed-off-by: Hyuk Lee <hyuk1.lee@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 9d51a6b2487724e8713cd2794cf09ffeee5f6932 |
|
20-Jul-2010 |
Marek Szyprowski <m.szyprowski@samsung.com> |
sdhci-s3c: add missing remove function
System will crash sooner or later once the memory with the code of the
s3c-sdhci.ko module is reused for something else. I really have no idea
how the lack of remove function went unnoticed into the mainline code.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 14c5aa6d3797c6b3d09193a8423472847f738526 |
|
26-May-2010 |
Maurus Cuelenaere <mcuelenaere@gmail.com> |
sdhci: enable multiblock transfers in sdhci-s3c
Wifi over SDIO doesn't work correctly without multiblock, so enable this.
This patch depends on the following patches:
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| b2e75eff5e859d0c294e7405958362b26a423c6e |
|
26-May-2010 |
Thomas Abraham <thomas.ab@samsung.com> |
mmc: s3c6410: enable ADMA feature in 6410 sdhci controller
Enable the ADMA feature in the 6410 SDHCI controller driver.
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| 5a0e3ad6af8660be21ca98a971cd00f331318c05 |
|
24-Mar-2010 |
Tejun Heo <tj@kernel.org> |
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
|
| 1388eefd5a5e6aaa3cb04070bfc2b944c1d24b82 |
|
14-Jun-2009 |
Ben Dooks <ben@simtec.co.uk> |
sdhci: Add SDHCI_QUIRK_NO_MULTIBLOCK quirk
Add quirk to show the controller cannot do multi-block IO.
This is mainly for the Samsung SDHCI controller that currently
cannot manage to do multi-block PIO without timing out.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
|
| 0d1bb41ad4ebca92fafbab6d6c60438d7efef386 |
|
14-Jun-2009 |
Ben Dooks <ben@simtec.co.uk> |
sdhci-s3c: Samsung S3C based SDHCI controller glue
Add support for the 'HSMMC' block(s) in the Samsung SoC
line. These are compatible with the SDHCI driver so add
the necessary setup and driver binding for the platform
devices.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
|