[PATCH 1/2] clk: meson: add the missing HDMI divider /4 alias

[Carlo Caione]

On GXL and G12A, HDMI PLL divider values 2 and 3 both select /4, but
only value 2 is listed in the tables. Reading value 3 therefore gives
an unknown divisor and an incorrect clock rate.

Add value 3 to both tables. This also avoids a division by zero when
the read-only rate-rounding helper uses the value read from hardware.

Signed-off-by: Carlo Caione <ccaione at baylibre.com>
---
 drivers/clk/meson/g12a.c | 3 ++-
 drivers/clk/meson/gxbb.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/meson/g12a.c b/drivers/clk/meson/g12a.c
index d0d4c7b6dc82..b23b9514fa91 100644
--- a/drivers/clk/meson/g12a.c
+++ b/drivers/clk/meson/g12a.c
@@ -779,12 +779,13 @@ static struct clk_regmap g12a_hdmi_pll_dco = {
 
 /*
  * G12/SM1 hdmi OD dividers are POWER_OF_TWO dividers but limited to /4.
- * A divider value of 3 should map to /8 but instead map /4 so ignore it.
+ * Divider values 2 and 3 both select /4.
  */
 static const struct clk_div_table g12a_hdmi_pll_od_div_table[] = {
 	{ .val = 0, .div = 1 },
 	{ .val = 1, .div = 2 },
 	{ .val = 2, .div = 4 },
+	{ .val = 3, .div = 4 },
 	{ /* sentinel */ }
 };
 
diff --git a/drivers/clk/meson/gxbb.c b/drivers/clk/meson/gxbb.c
index 7a7b104182ff..8cb6404c0efd 100644
--- a/drivers/clk/meson/gxbb.c
+++ b/drivers/clk/meson/gxbb.c
@@ -350,12 +350,13 @@ static struct clk_regmap gxbb_hdmi_pll = {
 
 /*
  * GXL hdmi OD dividers are POWER_OF_TWO dividers but limited to /4.
- * A divider value of 3 should map to /8 but instead map /4 so ignore it.
+ * Divider values 2 and 3 both select /4.
  */
 static const struct clk_div_table gxl_hdmi_pll_od_div_table[] = {
 	{ .val = 0, .div = 1 },
 	{ .val = 1, .div = 2 },
 	{ .val = 2, .div = 4 },
+	{ .val = 3, .div = 4 },
 	{ /* sentinel */ }
 };
 

-- 
2.56.0