clk: sunxi: fix A20 PLL4 calculation

Allwinner actually reworked the PLL4 on A20; now it's compatible with
the sun4i PLL5/6 design previous to any divisions, as well as to the new
PLL8 in sun7i.

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Mike Turquette <mturquette@linaro.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index 23baad9d934a..ef6ad52b7546 100644
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -589,6 +589,12 @@ static const struct factors_data sun6i_a31_pll1_data __initconst = {
         .getter = sun6i_a31_get_pll1_factors,
 };
 
+static const struct factors_data sun7i_a20_pll4_data __initconst = {
+        .enable = 31,
+        .table = &sun4i_pll5_config,
+        .getter = sun4i_get_pll5_factors,
+};
+
 static const struct factors_data sun4i_pll5_data __initconst = {
         .enable = 31,
         .table = &sun4i_pll5_config,
@@ -1209,6 +1215,7 @@ free_clkdata:
 static const struct of_device_id clk_factors_match[] __initconst = {
         {.compatible = "allwinner,sun4i-a10-pll1-clk", .data = &sun4i_pll1_data,},
         {.compatible = "allwinner,sun6i-a31-pll1-clk", .data = &sun6i_a31_pll1_data,},
+        {.compatible = "allwinner,sun7i-a20-pll4-clk", .data = &sun7i_a20_pll4_data,},
         {.compatible = "allwinner,sun6i-a31-pll6-clk", .data = &sun6i_a31_pll6_data,},
         {.compatible = "allwinner,sun4i-a10-apb1-clk", .data = &sun4i_apb1_data,},
         {.compatible = "allwinner,sun4i-a10-mod0-clk", .data = &sun4i_mod0_data,},