media: ccs: Add support for DDR OP SYS and OP PIX clocks

Support dual data rate operational system and pixel clocks by conveying
the flags to the PLL calculator and updating how the link rate is
calculated.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c
index 580166b..205d44c 100644 (file)
--- a/drivers/media/i2c/ccs/ccs-core.c
+++ b/drivers/media/i2c/ccs/ccs-core.c
@@ -387,7 +387,8 @@ static int ccs_pll_configure(struct ccs_sensor *sensor)
                         DIV_ROUND_UP(pll->op_bk.sys_clk_freq_hz,
                                      1000000 / 256 / 256) *
                         (pll->flags & CCS_PLL_FLAG_LANE_SPEED_MODEL ?
-                         sensor->pll.csi2.lanes : 1));
+                         sensor->pll.csi2.lanes : 1) <<
+                        (pll->flags & CCS_PLL_FLAG_OP_SYS_DDR ? 1 : 0));
        if (rval < 0 || sensor->pll.flags & CCS_PLL_FLAG_NO_OP_CLOCKS)
                return rval;
 
@@ -3273,6 +3274,12 @@ static int ccs_probe(struct i2c_client *client)
                } else {
                        sensor->pll.flags |= CCS_PLL_FLAG_DUAL_PLL;
                }
+               if (CCS_LIM(sensor, CLOCK_CALCULATION) &
+                   CCS_CLOCK_CALCULATION_DUAL_PLL_OP_SYS_DDR)
+                       sensor->pll.flags |= CCS_PLL_FLAG_OP_SYS_DDR;
+               if (CCS_LIM(sensor, CLOCK_CALCULATION) &
+                   CCS_CLOCK_CALCULATION_DUAL_PLL_OP_PIX_DDR)
+                       sensor->pll.flags |= CCS_PLL_FLAG_OP_PIX_DDR;
        }
        sensor->pll.op_bits_per_lane = CCS_LIM(sensor, OP_BITS_PER_LANE);
        sensor->pll.ext_clk_freq_hz = sensor->hwcfg.ext_clk;