linux-kernel - [PATCH] clk: qcom: gcc-ipq6018: add QUP6 I2C clock

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Date:   Sun, 15 Oct 2023 18:20:40 +0200
From:   Robert Marko <robimarko@...il.com>
To:     agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        mturquette@...libre.com, sboyd@...nel.org,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Robert Marko <robimarko@...il.com>
Subject: [PATCH] clk: qcom: gcc-ipq6018: add QUP6 I2C clock

QUP6 I2C clock is listed in the dt bindings but it was never included in
the GCC driver.
So lets add support for it, its intentionally marked to never be disabled
as its somehow affecting DVFS and if disabled it sometimes crashes the
board.

Signed-off-by: Robert Marko <robimarko@...il.com>
---
 drivers/clk/qcom/gcc-ipq6018.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/clk/qcom/gcc-ipq6018.c b/drivers/clk/qcom/gcc-ipq6018.c
index 31eef38c5864c..126d87df80c5b 100644
--- a/drivers/clk/qcom/gcc-ipq6018.c
+++ b/drivers/clk/qcom/gcc-ipq6018.c
@@ -2125,6 +2125,22 @@ static struct clk_branch gcc_blsp1_qup5_spi_apps_clk = {
 	},
 };
 
+static struct clk_branch gcc_blsp1_qup6_i2c_apps_clk = {
+	.halt_reg = 0x07010,
+	.clkr = {
+		.enable_reg = 0x07010,
+		.enable_mask = BIT(0),
+		.hw.init = &(struct clk_init_data){
+			.name = "gcc_blsp1_qup6_i2c_apps_clk",
+			.parent_hws = (const struct clk_hw *[]){
+					&blsp1_qup6_i2c_apps_clk_src.clkr.hw },
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
 static struct clk_branch gcc_blsp1_qup6_spi_apps_clk = {
 	.halt_reg = 0x0700c,
 	.clkr = {
@@ -4281,6 +4297,7 @@ static struct clk_regmap *gcc_ipq6018_clks[] = {
 	[GCC_BLSP1_QUP4_SPI_APPS_CLK] = &gcc_blsp1_qup4_spi_apps_clk.clkr,
 	[GCC_BLSP1_QUP5_I2C_APPS_CLK] = &gcc_blsp1_qup5_i2c_apps_clk.clkr,
 	[GCC_BLSP1_QUP5_SPI_APPS_CLK] = &gcc_blsp1_qup5_spi_apps_clk.clkr,
+	[GCC_BLSP1_QUP6_I2C_APPS_CLK] = &gcc_blsp1_qup6_i2c_apps_clk.clkr,
 	[GCC_BLSP1_QUP6_SPI_APPS_CLK] = &gcc_blsp1_qup6_spi_apps_clk.clkr,
 	[GCC_BLSP1_UART1_APPS_CLK] = &gcc_blsp1_uart1_apps_clk.clkr,
 	[GCC_BLSP1_UART2_APPS_CLK] = &gcc_blsp1_uart2_apps_clk.clkr,
-- 
2.41.0