diff mbox series

[v2,3/6] arm64: dts: exynos: gs101: use correct clocks for usi8

Message ID 20240130093812.1746512-4-andre.draszik@linaro.org
State New
Headers
Series gs101 oriole: peripheral block 0 (peric0) fixes |

Commit Message

André Draszik Jan. 30, 2024, 9:36 a.m. UTC 
  Wrong pclk clocks have been used in this usi8 instance here. For USI
and I2C, we need the ipclk and pclk, where pclk is the bus clock.
Without it, nothing can work.

It is unclear what exactly is using USI8_USI_CLK, but it is not
required for the IP to be operational at this stage, while pclk is.
This also brings the DT in line with the clock names expected by the
usi and i2c drivers.

Update the DTSI accordingly.

Fixes: 6d44d1a1fb62 ("arm64: dts: exynos: gs101: define USI8 with I2C configuration")
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Tested-by: Tudor Ambarus <tudor.ambarus@linaro.org>

---
v2:
* add an empty line to commit message
* collect Reviewed-by: Tested-by: tags
---
 arch/arm64/boot/dts/exynos/google/gs101.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Krzysztof Kozlowski Feb. 1, 2024, 10:36 a.m. UTC | #1 
On Tue, 30 Jan 2024 09:36:42 +0000, André Draszik wrote:
> Wrong pclk clocks have been used in this usi8 instance here. For USI
> and I2C, we need the ipclk and pclk, where pclk is the bus clock.
> Without it, nothing can work.
> 
> It is unclear what exactly is using USI8_USI_CLK, but it is not
> required for the IP to be operational at this stage, while pclk is.
> This also brings the DT in line with the clock names expected by the
> usi and i2c drivers.
> 
> [...]

Applied, thanks!

[3/6] arm64: dts: exynos: gs101: use correct clocks for usi8
      https://git.kernel.org/krzk/linux/c/512b5a875cd8b8352257fefe71513097ee97be77

Best regards,
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
index bc251e565be6..e5b665be2d62 100644
--- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi
+++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
@@ -380,7 +380,7 @@  usi8: usi@109700c0 {
 			ranges;
 			#address-cells = <1>;
 			#size-cells = <1>;
-			clocks = <&cmu_peric0 CLK_GOUT_PERIC0_CLK_PERIC0_USI8_USI_CLK>,
+			clocks = <&cmu_peric0 CLK_GOUT_PERIC0_PERIC0_TOP0_PCLK_7>,
 				 <&cmu_peric0 CLK_GOUT_PERIC0_PERIC0_TOP0_IPCLK_7>;
 			clock-names = "pclk", "ipclk";
 			samsung,sysreg = <&sysreg_peric0 0x101c>;
@@ -397,7 +397,7 @@  hsi2c_8: i2c@10970000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&hsi2c8_bus>;
 				clocks = <&cmu_peric0 CLK_GOUT_PERIC0_PERIC0_TOP0_IPCLK_7>,
-					 <&cmu_peric0 CLK_GOUT_PERIC0_CLK_PERIC0_USI8_USI_CLK>;
+					 <&cmu_peric0 CLK_GOUT_PERIC0_PERIC0_TOP0_PCLK_7>;
 				clock-names = "hsi2c", "hsi2c_pclk";
 				status = "disabled";
 			};