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mediatek: use existing I2C clock names

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PCK and MCK should really be P=PMIC and M=MEM, which means that they
should effectively be CLK_PMIC and CLK_ARB.

Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2023-06-01 10:32:19 +01:00
parent 7e93f520d6
commit 0580747ada
2 changed files with 1 additions and 56 deletions
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2
target/linux/mediatek/files-5.15/arch/arm64/boot/dts/mediatek/mt7981.dtsi
View File

@ -327,7 +327,7 @@
<&infracfg CLK_INFRA_AP_DMA_CK>,
<&infracfg CLK_INFRA_I2C_MCK_CK>,
<&infracfg CLK_INFRA_I2C_PCK_CK>;
clock-names = "main", "dma", "mck", "pck";
clock-names = "main", "dma", "arb", "pmic";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";

55
target/linux/mediatek/patches-5.15/855-pending-i2c-mt65xx-add-additional-clocks.patch
View File

@ -1,55 +0,0 @@
From 94bf61df9201195d6d8ce82e299fb231b31fbaae Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Fri, 26 May 2023 10:29:45 +0100
Subject: [PATCH] i2c: mt65xx: add additional clocks
On MT7981 additional clocks are required when accessing I2C registers.
Add MCK and PCK optional clocks to i2c-mt65xx driver so we don't have
to always have them enabled, but really only if I2C is used.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/i2c/busses/i2c-mt65xx.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -93,6 +93,8 @@
* @I2C_MT65XX_CLK_DMA: DMA clock for i2c via DMA
* @I2C_MT65XX_CLK_PMIC: PMIC clock for i2c from PMIC
* @I2C_MT65XX_CLK_ARB: Arbitrator clock for i2c
+ * @I2C_MT65XX_CLK_MCK: MCK clock for i2c
+ * @I2C_MT65XX_CLK_PCK: PCK clock for i2c
* @I2C_MT65XX_CLK_MAX: Number of supported clocks
*/
enum i2c_mt65xx_clks {
@@ -100,11 +102,13 @@ enum i2c_mt65xx_clks {
I2C_MT65XX_CLK_DMA,
I2C_MT65XX_CLK_PMIC,
I2C_MT65XX_CLK_ARB,
+ I2C_MT65XX_CLK_MCK,
+ I2C_MT65XX_CLK_PCK,
I2C_MT65XX_CLK_MAX
};
static const char * const i2c_mt65xx_clk_ids[I2C_MT65XX_CLK_MAX] = {
- "main", "dma", "pmic", "arb"
+ "main", "dma", "pmic", "arb", "mck", "pck"
};
enum DMA_REGS_OFFSET {
@@ -1444,6 +1448,14 @@ static int mtk_i2c_probe(struct platform
if (IS_ERR(i2c->clocks[I2C_MT65XX_CLK_ARB].clk))
return PTR_ERR(i2c->clocks[I2C_MT65XX_CLK_ARB].clk);
+ i2c->clocks[I2C_MT65XX_CLK_MCK].clk = devm_clk_get_optional(&pdev->dev, "mck");
+ if (IS_ERR(i2c->clocks[I2C_MT65XX_CLK_MCK].clk))
+ return PTR_ERR(i2c->clocks[I2C_MT65XX_CLK_MCK].clk);
+
+ i2c->clocks[I2C_MT65XX_CLK_PCK].clk = devm_clk_get_optional(&pdev->dev, "pck");
+ if (IS_ERR(i2c->clocks[I2C_MT65XX_CLK_PCK].clk))
+ return PTR_ERR(i2c->clocks[I2C_MT65XX_CLK_PCK].clk);
+
if (i2c->have_pmic) {
i2c->clocks[I2C_MT65XX_CLK_PMIC].clk = devm_clk_get(&pdev->dev, "pmic");
if (IS_ERR(i2c->clocks[I2C_MT65XX_CLK_PMIC].clk)) {