Commit graph

8 commits

Author SHA1 Message Date
Chunyan Zhang
f95e8c7923 clk: sprd: support to get regmap from parent node
Some SC9863a clock nodes would be the child of a syscon node, clocks can
use the regmap of syscon device directly for this kind of cases.

Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Link: https://lkml.kernel.org/r/20200304072730.9193-7-zhang.lyra@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-03-24 19:03:57 -07:00
Stephen Boyd
dabedfede3 Merge branches 'clk-gpio-flags', 'clk-tegra', 'clk-rockchip', 'clk-sprd' and 'clk-pxa' into clk-next
- Make gpio gate clks propagate rate setting up to parent

* clk-gpio-flags:
  clk: clk-gpio: propagate rate change to parent

* clk-tegra: (23 commits)
  clk: tegra: Use match_string() helper to simplify the code
  clk: tegra: Fix build error without CONFIG_PM_SLEEP
  clk: tegra: Add missing stubs for the case of !CONFIG_PM_SLEEP
  clk: tegra: Optimize PLLX restore on Tegra20/30
  clk: tegra: Add suspend and resume support on Tegra210
  clk: tegra: Share clk and rst register defines with Tegra clock driver
  clk: tegra: Use fence_udelay() during PLLU init
  clk: tegra: clk-dfll: Add suspend and resume support
  clk: tegra: clk-super: Add restore-context support
  clk: tegra: clk-super: Fix to enable PLLP branches to CPU
  clk: tegra: periph: Add restore_context support
  clk: tegra: Support for OSC context save and restore
  clk: tegra: pll: Save and restore pll context
  clk: tegra: pllout: Save and restore pllout context
  clk: tegra: divider: Save and restore divider rate
  clk: tegra: Reimplement SOR clocks on Tegra210
  clk: tegra: Reimplement SOR clock on Tegra124
  clk: tegra: Rename sor0_lvds to sor0_out
  clk: tegra: Move SOR0 implementation to Tegra124
  clk: tegra: Remove last remains of TEGRA210_CLK_SOR1_SRC
  ...

* clk-rockchip:
  clk: rockchip: protect the pclk_usb_grf as critical on px30
  clk: rockchip: add video-related niu clocks as critical on px30
  clk: rockchip: move px30 critical clocks to correct clock controller
  clk: rockchip: Add div50 clocks for px30 sdmmc, emmc, sdio and nandc
  clk: rockchip: Add div50 clock-ids for sdmmc on px30 and nandc
  clk: rockchip: make clk_half_divider_ops static

* clk-sprd:
  clk: sprd: Use IS_ERR() to validate the return value of syscon_regmap_lookup_by_phandle()

* clk-pxa:
  clk: pxa: fix one of the pxa RTC clocks
2019-11-27 08:15:00 -08:00
Baolin Wang
9629dbdabd clk: sprd: Use IS_ERR() to validate the return value of syscon_regmap_lookup_by_phandle()
The syscon_regmap_lookup_by_phandle() will never return NULL, thus use
IS_ERR() to validate the return value instead of IS_ERR_OR_NULL().

Fixes: d41f59fd92 ("clk: sprd: Add common infrastructure")
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Link: https://lkml.kernel.org/r/1995139bee5248ff3e9d46dc715968f212cfc4cc.1570520268.git.baolin.wang@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-11-13 14:59:46 -08:00
Baolin Wang
793ee798cc clk: sprd: Change to use devm_platform_ioremap_resource()
Use the new helper that wraps the calls to platform_get_resource()
and devm_ioremap_resource() together, which can simpify the code.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Link: https://lkml.kernel.org/r/841d26a2adb4bf3b4423f82a41dd3f1346413db6.1570520268.git.baolin.wang@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-10-16 16:18:30 -07:00
Stephen Boyd
f6c90df8e7 clk: sprd: Don't reference clk_init_data after registration
A future patch is going to change semantics of clk_register() so that
clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid
referencing this member here so that we don't run into NULL pointer
exceptions.

Cc: Chunyan Zhang <zhang.chunyan@linaro.org>
Cc: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190731193517.237136-8-sboyd@kernel.org
Acked-by: Baolin Wang <baolin.wang@linaro.org>
Acked-by: Chunyan Zhang <zhang.chunyan@linaro.org>
2019-08-16 10:20:07 -07:00
Chunyan Zhang
78f5296951 clk: sprd: Check error only for devm_regmap_init_mmio()
The function devm_regmap_init_mmio() wouldn't return NULL pointer for
now, so only need to ensure the return value is not an error code.

Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Reviewed-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-06-26 11:15:08 -07:00
Chunyan Zhang
69b39d2503 clk: sprd: Switch from of_iomap() to devm_ioremap_resource()
devm_ioremap_resources() automatically requests resources and devm_ wrappers
do better error handling and unmapping of the I/O region when needed,
that would make drivers more clean and simple.

Signed-off-by: Chunyan Zhang <zhang.chunyan@linaro.org>
Reviewed-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-06-26 11:12:50 -07:00
Chunyan Zhang
d41f59fd92 clk: sprd: Add common infrastructure
Added Spreadtrum's clock driver framework together with common
structures and interface functions.

Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-12-21 15:00:51 -08:00