clk: imx8mm: add pwm clocks support

Add clocks support for the PWM controllers. This is ported from
Linux v5.17-rc8.

Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>

diff --git a/drivers/clk/imx/clk-imx8mm.c b/drivers/clk/imx/clk-imx8mm.c
index 443bbda..a011519 100644 (file)
--- a/drivers/clk/imx/clk-imx8mm.c
+++ b/drivers/clk/imx/clk-imx8mm.c
@@ -116,6 +116,18 @@ static const char *imx8mm_i2c3_sels[] = {"clock-osc-24m", "sys_pll1_160m", "sys_
 static const char *imx8mm_i2c4_sels[] = {"clock-osc-24m", "sys_pll1_160m", "sys_pll2_50m", "sys_pll3_out", "audio_pll1_out",
                                         "video_pll1_out", "audio_pll2_out", "sys_pll1_133m", };
 
+static const char *imx8mm_pwm1_sels[] = {"clock-osc-24m", "sys_pll2_100m", "sys_pll1_160m", "sys_pll1_40m",
+                                        "sys_pll3_out", "clk_ext1", "sys_pll1_80m", "video_pll1_out", };
+
+static const char *imx8mm_pwm2_sels[] = {"clock-osc-24m", "sys_pll2_100m", "sys_pll1_160m", "sys_pll1_40m",
+                                        "sys_pll3_out", "clk_ext1", "sys_pll1_80m", "video_pll1_out", };
+
+static const char *imx8mm_pwm3_sels[] = {"clock-osc-24m", "sys_pll2_100m", "sys_pll1_160m", "sys_pll1_40m",
+                                        "sys_pll3_out", "clk_ext2", "sys_pll1_80m", "video_pll1_out", };
+
+static const char *imx8mm_pwm4_sels[] = {"clock-osc-24m", "sys_pll2_100m", "sys_pll1_160m", "sys_pll1_40m",
+                                        "sys_pll3_out", "clk_ext2", "sys_pll1_80m", "video_pll1_out", };
+
 static const char *imx8mm_wdog_sels[] = {"clock-osc-24m", "sys_pll1_133m", "sys_pll1_160m", "vpu_pll_out",
                                         "sys_pll2_125m", "sys_pll3_out", "sys_pll1_80m", "sys_pll2_166m", };
 
@@ -305,6 +317,14 @@ static int imx8mm_clk_probe(struct udevice *dev)
               imx8m_clk_composite("i2c3", imx8mm_i2c3_sels, base + 0xae00));
        clk_dm(IMX8MM_CLK_I2C4,
               imx8m_clk_composite("i2c4", imx8mm_i2c4_sels, base + 0xae80));
+       clk_dm(IMX8MM_CLK_PWM1,
+              imx8m_clk_composite("pwm1", imx8mm_pwm1_sels, base + 0xb380));
+       clk_dm(IMX8MM_CLK_PWM2,
+              imx8m_clk_composite("pwm2", imx8mm_pwm2_sels, base + 0xb400));
+       clk_dm(IMX8MM_CLK_PWM3,
+              imx8m_clk_composite("pwm3", imx8mm_pwm3_sels, base + 0xb480));
+       clk_dm(IMX8MM_CLK_PWM4,
+              imx8m_clk_composite("pwm4", imx8mm_pwm4_sels, base + 0xb500));
        clk_dm(IMX8MM_CLK_WDOG,
               imx8m_clk_composite("wdog", imx8mm_wdog_sels, base + 0xb900));
        clk_dm(IMX8MM_CLK_USDHC3,
@@ -339,6 +359,14 @@ static int imx8mm_clk_probe(struct udevice *dev)
               imx_clk_gate4("i2c4_root_clk", "i2c4", base + 0x41a0, 0));
        clk_dm(IMX8MM_CLK_OCOTP_ROOT,
               imx_clk_gate4("ocotp_root_clk", "ipg_root", base + 0x4220, 0));
+       clk_dm(IMX8MM_CLK_PWM1_ROOT,
+              imx_clk_gate4("pwm1_root_clk", "pwm1", base + 0x4280, 0));
+       clk_dm(IMX8MM_CLK_PWM2_ROOT,
+              imx_clk_gate4("pwm2_root_clk", "pwm2", base + 0x4290, 0));
+       clk_dm(IMX8MM_CLK_PWM3_ROOT,
+              imx_clk_gate4("pwm3_root_clk", "pwm3", base + 0x42a0, 0));
+       clk_dm(IMX8MM_CLK_PWM4_ROOT,
+              imx_clk_gate4("pwm4_root_clk", "pwm4", base + 0x42b0, 0));
        clk_dm(IMX8MM_CLK_USDHC1_ROOT,
               imx_clk_gate4("usdhc1_root_clk", "usdhc1", base + 0x4510, 0));
        clk_dm(IMX8MM_CLK_USDHC2_ROOT,