[PATCH v3 7/7] clk: rockchip: rk3399: Add support frac mode frequencies

Xing Zheng
2016-08-02T07:22:59Z

We need to support various display resolutions for external
display devices like HDMI/DP, the frac mode can help us to
acquire almost any frequencies, and need higher VCOs to reduce
clock jitters.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
---

Changes in v3: None
Changes in v2: None

drivers/clk/rockchip/clk-rk3399.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/rockchip/clk-rk3399.c b/drivers/clk/rockchip/clk-rk3399.c
index 2792404..ddd209b 100644
--- a/drivers/clk/rockchip/clk-rk3399.c
+++ b/drivers/clk/rockchip/clk-rk3399.c
@@ -109,6 +109,25 @@ static struct rockchip_pll_rate_table rk3399_pll_rates[] = {
{ /* sentinel */ },
};

+static struct rockchip_pll_rate_table rk3399_pll_frates[] = {
+ /* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */
+ RK3036_PLL_RATE( 594000000, 1, 123, 5, 1, 0, 12582912), /* vco = 2970000000 */
+ RK3036_PLL_RATE( 593406593, 1, 123, 5, 1, 0, 10508804), /* vco = 2967032965 */
+ RK3036_PLL_RATE( 297000000, 1, 123, 5, 2, 0, 12582912), /* vco = 2970000000 */
+ RK3036_PLL_RATE( 296703297, 1, 123, 5, 2, 0, 10508807), /* vco = 2967032970 */
+ RK3036_PLL_RATE( 148500000, 1, 129, 7, 3, 0, 15728640), /* vco = 3118500000 */
+ RK3036_PLL_RATE( 148351648, 1, 123, 5, 4, 0, 10508800), /* vco = 2967032960 */
+ RK3036_PLL_RATE( 106500000, 1, 124, 7, 4, 0, 4194304), /* vco = 2982000000 */
+ RK3036_PLL_RATE( 74250000, 1, 129, 7, 6, 0, 15728640), /* vco = 3118500000 */
+ RK3036_PLL_RATE( 74175824, 1, 129, 7, 6, 0, 13550823), /* vco = 3115384608 */
+ RK3036_PLL_RATE( 65000000, 1, 113, 7, 6, 0, 12582912), /* vco = 2730000000 */
+ RK3036_PLL_RATE( 59340659, 1, 121, 7, 7, 0, 2581098), /* vco = 2907692291 */
+ RK3036_PLL_RATE( 54000000, 1, 110, 7, 7, 0, 4194304), /* vco = 2646000000 */
+ RK3036_PLL_RATE( 27000000, 1, 55, 7, 7, 0, 2097152), /* vco = 1323000000 */
+ RK3036_PLL_RATE( 26973027, 1, 55, 7, 7, 0, 1173232), /* vco = 1321678323 */
+ { /* sentinel */ },
+};
+
/* CRU parents */
PNAME(mux_pll_p) = { "xin24m", "xin32k" };

@@ -229,7 +248,7 @@ static struct rockchip_pll_clock rk3399_pll_clks[] __initdata = {
[npll] = PLL(pll_rk3399, PLL_NPLL, "npll", mux_pll_p, 0, RK3399_PLL_CON(40),
RK3399_PLL_CON(43), 8, 31, ROCKCHIP_PLL_SYNC_RATE, rk3399_pll_rates),
[vpll] = PLL(pll_rk3399, PLL_VPLL, "vpll", mux_pll_p, 0, RK3399_PLL_CON(48),
- RK3399_PLL_CON(51), 8, 31, ROCKCHIP_PLL_SYNC_RATE, rk3399_pll_rates),
+ RK3399_PLL_CON(51), 8, 31, ROCKCHIP_PLL_SYNC_RATE, rk3399_pll_frates),
};

static struct rockchip_pll_clock rk3399_pmu_pll_clks[] __initdata = {
--
1.7.9.5