linux-kernel - [PATCH 5/7] clk: imx: imx7ulp: add IMX7ULP_CLK_ARM

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Message-Id: <1580823277-13644-6-git-send-email-peng.fan@nxp.com>
Date:   Tue,  4 Feb 2020 21:34:35 +0800
From:   peng.fan@....com
To:     shawnguo@...nel.org, s.hauer@...gutronix.de, sboyd@...nel.org,
        abel.vesa@....com, aisheng.dong@....com, leonard.crestez@....com
Cc:     kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        ping.bai@....com, Anson.Huang@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, Peng Fan <peng.fan@....com>
Subject: [PATCH 5/7] clk: imx: imx7ulp: add IMX7ULP_CLK_ARM_FREQ clk

From: Peng Fan <peng.fan@....com>

Add IMX7ULP_CLK_ARM_FREQ clk entry for cpufreq usage.
The cpu in device tree needs use this index as clock.

Signed-off-by: Peng Fan <peng.fan@....com>
---
 drivers/clk/imx/clk-imx7ulp.c             | 15 ++++++++++++++-
 include/dt-bindings/clock/imx7ulp-clock.h |  3 ++-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/imx/clk-imx7ulp.c b/drivers/clk/imx/clk-imx7ulp.c
index 0620d6c8c072..daa770432bc8 100644
--- a/drivers/clk/imx/clk-imx7ulp.c
+++ b/drivers/clk/imx/clk-imx7ulp.c
@@ -56,6 +56,7 @@ static const int pcc3_uart_clk_ids[] __initconst = {
 static struct clk **pcc2_uart_clks[ARRAY_SIZE(pcc2_uart_clk_ids) + 1] __initdata;
 static struct clk **pcc3_uart_clks[ARRAY_SIZE(pcc3_uart_clk_ids) + 1] __initdata;
 
+static struct clk_hw **hws_scg1;
 static void __init imx7ulp_clk_scg1_init(struct device_node *np)
 {
 	struct clk_hw_onecell_data *clk_data;
@@ -139,6 +140,8 @@ static void __init imx7ulp_clk_scg1_init(struct device_node *np)
 
 	imx_check_clk_hws(hws, clk_data->num);
 
+	hws_scg1 = hws;
+
 	of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
 }
 CLK_OF_DECLARE(imx7ulp_clk_scg1, "fsl,imx7ulp-scg1", imx7ulp_clk_scg1_init);
@@ -270,7 +273,17 @@ static void __init imx7ulp_clk_smc1_init(struct device_node *np)
 	base = of_iomap(np, 0);
 	WARN_ON(!base);
 
-	hws[IMX7ULP_CLK_ARM] = imx_clk_hw_mux_flags("arm", base + 0x10, 8, 2, arm_sels, ARRAY_SIZE(arm_sels), CLK_IS_CRITICAL);
+	hws[IMX7ULP_CLK_ARM] = imx_clk_hw_mux_flags("arm", base + 0x10, 8, 2, arm_sels, ARRAY_SIZE(arm_sels), 0);
+
+	hws[IMX7ULP_CLK_ARM_FREQ] = imx_clk_hw_cpuv2("arm_freq", "arm",
+						     hws[IMX7ULP_CLK_ARM],
+						     hws_scg1[IMX7ULP_CLK_CORE_DIV],
+						     hws_scg1[IMX7ULP_CLK_HSRUN_CORE_DIV],
+						     hws_scg1[IMX7ULP_CLK_SYS_SEL],
+						     hws_scg1[IMX7ULP_CLK_HSRUN_SYS_SEL],
+						     hws_scg1[IMX7ULP_CLK_SPLL_SEL],
+						     hws_scg1[IMX7ULP_CLK_SPLL_PFD0],
+						     hws_scg1[IMX7ULP_CLK_FIRC], CLK_IS_CRITICAL, 0);
 
 	imx_check_clk_hws(hws, clk_data->num);
 
diff --git a/include/dt-bindings/clock/imx7ulp-clock.h b/include/dt-bindings/clock/imx7ulp-clock.h
index 38145bdcd975..ecd832dd1c9c 100644
--- a/include/dt-bindings/clock/imx7ulp-clock.h
+++ b/include/dt-bindings/clock/imx7ulp-clock.h
@@ -110,7 +110,8 @@
 
 /* SMC1 */
 #define IMX7ULP_CLK_ARM			0
+#define IMX7ULP_CLK_ARM_FREQ		1
 
-#define IMX7ULP_CLK_SMC1_END		1
+#define IMX7ULP_CLK_SMC1_END		2
 
 #endif /* __DT_BINDINGS_CLOCK_IMX7ULP_H */
-- 
2.16.4