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Commit 6c4cd9be authored by Samyukta Mogily's avatar Samyukta Mogily Committed by Gerrit - the friendly Code Review server
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msm: camera: Add check for sensor data rate 



Add check to return error when data rate is more
than the max rate that can be programmed.

Change-Id: Ife8bb677cd043f19f5c2c05ee4deb7ba63ef23a7
Signed-off-by: default avatarSamyukta Mogily <smogily@codeaurora.org>
parent 63098a4e

drivers/media/platform/msm/camera_v2/sensor/csiphy/msm_csiphy.c

+9 −9
Original line number Diff line number Diff line
@@ -58,6 +58,7 @@ 
#define MBPS                                      1000000

#define SNPS_INTERPHY_OFFSET                      0x800

#define SET_THE_BIT(x)                            (0x1 << x)

#define SNPS_MAX_DATA_RATE_PER_LANE               2500000000ULL



#undef CDBG

#define CDBG(fmt, args...) pr_debug(fmt, ##args)
@@ -185,7 +186,15 @@ static int msm_csiphy_snps_2_lane_config( 
	void __iomem *csiphybase;



	csiphybase = csiphy_dev->base;



	if (csiphy_params->data_rate >

		SNPS_MAX_DATA_RATE_PER_LANE * num_lanes) {

		pr_err("unsupported data rate\n");

		return -EINVAL;

	}



	local_data_rate = csiphy_params->data_rate;



	if (mode == TWO_LANE_PHY_A)

		offset = 0x0;

	else if (mode == TWO_LANE_PHY_B)
@@ -208,15 +217,6 @@ static int msm_csiphy_snps_2_lane_config( 
		diff = diff_i;

	}



	if (i == (sizeof(snps_v100_freq_values)/

		sizeof(snps_v100_freq_values[0]))) {

		if (local_data_rate >

			snps_v100_freq_values[--i].default_bit_rate) {

			pr_err("unsupported data rate\n");

			return -EINVAL;

		}

	}



	csiphy_dev->snps_programmed_data_rate = csiphy_params->data_rate;



	if (mode == TWO_LANE_PHY_A) {