clk: stm32: Add DSI clock for STM32F469 Board

This patch adds DSI clock for STM32F469 board

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c
index da44f8d..3c28798 100644 (file)
--- a/drivers/clk/clk-stm32f4.c
+++ b/drivers/clk/clk-stm32f4.c
@@ -521,7 +521,7 @@ static const struct stm32f4_pll_data stm32f429_pll[MAX_PLL_DIV] = {
 };
 
 static const struct stm32f4_pll_data stm32f469_pll[MAX_PLL_DIV] = {
-       { PLL,     50, { "pll",      "pll-q",    NULL       } },
+       { PLL,     50, { "pll",      "pll-q",    "pll-r"    } },
        { PLL_I2S, 50, { "plli2s-p", "plli2s-q", "plli2s-r" } },
        { PLL_SAI, 50, { "pllsai-p", "pllsai-q", "pllsai-r" } },
 };
@@ -1047,6 +1047,8 @@ static const char *rtc_parents[4] = {
        "no-clock", "lse", "lsi", "hse-rtc"
 };
 
+static const char *dsi_parent[2] = { NULL, "pll-r" };
+
 static const char *lcd_parent[1] = { "pllsai-r-div" };
 
 static const char *i2s_parents[2] = { "plli2s-r", NULL };
@@ -1156,6 +1158,12 @@ static const struct stm32_aux_clk stm32f469_aux_clk[] = {
                NO_GATE, 0,
                0
        },
+       {
+               CLK_F469_DSI, "dsi", dsi_parent, ARRAY_SIZE(dsi_parent),
+               STM32F4_RCC_DCKCFGR, 29, 1,
+               STM32F4_RCC_APB2ENR, 27,
+               CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT
+       },
 };
 
 static const struct stm32_aux_clk stm32f746_aux_clk[] = {
@@ -1450,6 +1458,7 @@ static void __init stm32f4_rcc_init(struct device_node *np)
        stm32f4_gate_map = data->gates_map;
 
        hse_clk = of_clk_get_parent_name(np, 0);
+       dsi_parent[0] = hse_clk;
 
        i2s_in_clk = of_clk_get_parent_name(np, 1);
 

diff --git a/include/dt-bindings/clock/stm32fx-clock.h b/include/dt-bindings/clock/stm32fx-clock.h
index 4d523b0..58d8b51 100644 (file)
--- a/include/dt-bindings/clock/stm32fx-clock.h
+++ b/include/dt-bindings/clock/stm32fx-clock.h
@@ -35,8 +35,9 @@
 #define CLK_SAIQ_PDIV          13
 #define CLK_HSI                        14
 #define CLK_SYSCLK             15
+#define CLK_F469_DSI           16
 
-#define END_PRIMARY_CLK                16
+#define END_PRIMARY_CLK                17
 
 #define CLK_HDMI_CEC           16
 #define CLK_SPDIF              17