Add the m-phy tuning values for gs101 UFS phy and SoC callbacks
gs101_phy_wait_for_calibration() and gs101_phy_wait_for_cdr_lock().
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240404122559.898930-12-peter.griffin@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Some SoCs like gs101 don't fit in well with the existing pll lock and
clock data recovery (CDR) callback used by existing exynos platforms.
Allow SoCs to specifify and implement their own calibration and CDR
functions that can be called by the generic samsung phy code.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240404122559.898930-11-peter.griffin@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Instead of using separated clock manipulation, this converts the phy
clock usage to be clk_bulk APIs. By using this, we can completely
remove has_symbol_clk check and symbol clk variables.
Furthermore, clk_get should be moved to probe because there is no need
to get them in the phy_init callback.
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220706020255.151177-2-chanho61.park@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Adds support for Tesla Full Self-Driving (FSD) ufs phy driver.
This SoC has different cdr lock status offset.
Signed-off-by: Bharat Uppal <bharat.uppal@samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220610104119.66401-4-alim.akhtar@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Move CDR lock offset to drv data so that it can be extended for other SoCs
which are having CDR lock at different register offset.
Signed-off-by: Bharat Uppal <bharat.uppal@samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220610104119.66401-3-alim.akhtar@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
To change an offset of pmu_isol, we need to store its data instead of
having drvdata's pointer. The definition of the pmu_isol structure
should be extracted from samsung_ufs_phy_drvdata and rename the name
with samsung_ufs_phy_ prefix.
Suggested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20220607072907.127000-5-chanho61.park@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Put const qualifier of samsung_ufs_phy_cfg pointer because they will
not be changed from drvdata.
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220607072907.127000-4-chanho61.park@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Rename **cfg to **cfgs to clarify the naming.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20220607072907.127000-3-chanho61.park@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This patch adds to support phy-exynosautov9-ufs driver for ExynosAuto v9
series SoCs. The patch adds "samsung,exynosautov9-ufs-phy" compatible.
Unlike previous exynos ufs phy, the chip uses 0x50 offset as
PHY_TRSV_REG_CFG_OFFSET.
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20210709094524.110193-3-chanho61.park@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Instead of using exynos7 ufs definition in phy-exynos7-ufs.h, we should
put it into phy-exynos7-ufs.c to be included different objects or units.
Suggested-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20210709094524.110193-2-chanho61.park@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This patch introduces Samsung UFS PHY driver. This driver
supports to deal with phy calibration and power control
according to UFS host driver's behavior.
[Robot: -Wmissing-prototypes and -Wsometimes-uninitialized]
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Kiwoong Kim <kwmad.kim@samsung.com>
Signed-off-by: Seungwon Jeon <essuuj@gmail.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Vinod Koul <vkoul@kernel.org>
Tested-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Link: https://lore.kernel.org/r/20200716192217.35740-2-alim.akhtar@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
