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Commit Graph

7 Commits

Author SHA1 Message Date
Masahiro Yamada
1ab0d2d79b mmc: sdhci: enable/disable the clock in sdhci_pltfm_suspend/resume
This commit provides similar cleanups as commit 83eacdfa25 ("mmc:
sdhci: disable the clock in sdhci_pltfm_unregister()") did for
unregister hooks.

sdhci-brcmstb.c and sdhci-sirf.c implement their own suspend/resume
hooks to handle pltfm_host->clk.  Move clock handling to sdhci_pltfm.c
so that the drivers can reuse sdhci_pltfm_pmops.

The following drivers did not previously touch pltfm_host->clk during
suspend/resume, but now do:
  - sdhci-bcm-kona.c
  - sdhci-dove.c
  - sdhci-iproc.c
  - sdhci-pxav2.c
  - sdhci-tegra.c
  - sdhci-xenon.c

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Al Cooper <alcooperx@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-08-30 15:03:44 +02:00
Julia Lawall
3671967641 mmc: sdhci-brcmstb: constify sdhci_pltfm_data structures
The sdhci_pltfm_data structure is only passed as the second argument
of sdhci_pltfm_init, which is const, so the sdhci_pltfm_data structure
can be const as well.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-08-30 14:01:53 +02:00
Ulf Hansson
d2a47176a8 mmc: core: Remove MMC_CAP2_HC_ERASE_SZ
The MMC_CAP2_HC_ERASE_SZ is used only by a few mmc host drivers. Its intent
is to enable eMMC's high-capacity erase size, as to improve the behaviour
of the erase operations.

We should strive to avoid software configuration options that aren't
necessary, but instead deploy common behaviours. For these reasons, let's
remove the capability bit for MMC_CAP2_HC_ERASE_SZ and make it the default
behaviour.

Note that this change doesn't affect eMMCs supporting trim/discard, because
these commands operates on sectors and takes precedence over erase
commands.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Tested-by: Shawn Lin <shawn.lin@rock-chips.com>
2017-06-20 10:30:48 +02:00
Adrian Hunter
d38dcad4e7 mmc: sdhci: Let drivers decide whether to use mmc_retune_needed() with pm
Devices might save and restore tuning values so that re-tuning might not be
needed after a pm transition.  Let drivers decide by pushing the
mmc_retune_needed() logic down to them.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2017-04-24 21:41:26 +02:00
Jaedon Shin
6a3d8ced09 mmc: sdhci-brcmstb: Fix incorrect capability
Clear incorrect SDHCI_CAN_64BIT capability on Broadcom MIPS based SoCs.
The MIPS based SoCs are using ADMA only, but the several SoCs have the
incorrect capability bit about ADMA 64-bit. The "brcm,bcm7425-sdhci" is
compatible string for MIPS based SoC.

Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-09-26 21:31:28 +02:00
Markus Elfring
4ad90cf9a8 mmc: sdhci-brcmstb: Delete owner assignment
The field "owner" is set by core. Thus delete an extra initialisation.

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-09-26 21:31:10 +02:00
Al Cooper
476bf3d62d mmc: sdhci-brcmstb: Add driver for Broadcom BRCMSTB SoCs
Add SDHCI driver for Broadcom BRCMSTB SoCs.
This driver works with all ARM based SoCs and the 7425, 7429
and 7435 MIPS based SoCs.

The driver disables all UHS speed modes by default and relies
on the Device Tree node properties to enable these modes for
SoC/Board combinations that support them.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-07-25 10:34:14 +02:00