diff --git a/drivers/media/i2c/imx290.c b/drivers/media/i2c/imx290.c index ba70f6eb1615..c98de9f78947 100644 --- a/drivers/media/i2c/imx290.c +++ b/drivers/media/i2c/imx290.c @@ -193,6 +193,18 @@ struct imx290_mode { u32 data_size; }; +struct imx290_csi_cfg { + u16 repetition; + u16 tclkpost; + u16 thszero; + u16 thsprepare; + u16 tclktrail; + u16 thstrail; + u16 tclkzero; + u16 tclkprepare; + u16 tlpx; +}; + struct imx290 { struct device *dev; struct clk *xclk; @@ -292,16 +304,6 @@ static const struct imx290_regval imx290_1080p_settings[] = { { IMX290_INCKSEL4, 0x01 }, { IMX290_INCKSEL5, 0x1a }, { IMX290_INCKSEL6, 0x1a }, - /* data rate settings */ - { IMX290_REPETITION, 0x10 }, - { IMX290_TCLKPOST, 87 }, - { IMX290_THSZERO, 55 }, - { IMX290_THSPREPARE, 31 }, - { IMX290_TCLKTRAIL, 31 }, - { IMX290_THSTRAIL, 31 }, - { IMX290_TCLKZERO, 119 }, - { IMX290_TCLKPREPARE, 31 }, - { IMX290_TLPX, 23 }, }; static const struct imx290_regval imx290_720p_settings[] = { @@ -317,16 +319,6 @@ static const struct imx290_regval imx290_720p_settings[] = { { IMX290_INCKSEL4, 0x01 }, { IMX290_INCKSEL5, 0x1a }, { IMX290_INCKSEL6, 0x1a }, - /* data rate settings */ - { IMX290_REPETITION, 0x10 }, - { IMX290_TCLKPOST, 79 }, - { IMX290_THSZERO, 47 }, - { IMX290_THSPREPARE, 23 }, - { IMX290_TCLKTRAIL, 23 }, - { IMX290_THSTRAIL, 23 }, - { IMX290_TCLKZERO, 87 }, - { IMX290_TCLKPREPARE, 23 }, - { IMX290_TLPX, 23 }, }; static const struct imx290_regval imx290_10bit_settings[] = { @@ -347,6 +339,58 @@ static const struct imx290_regval imx290_12bit_settings[] = { { IMX290_CSI_DT_FMT, IMX290_CSI_DT_FMT_RAW12 }, }; +static const struct imx290_csi_cfg imx290_csi_222_75mhz = { + /* 222.75MHz or 445.5Mbit/s per lane */ + .repetition = 0x10, + .tclkpost = 87, + .thszero = 55, + .thsprepare = 31, + .tclktrail = 31, + .thstrail = 31, + .tclkzero = 119, + .tclkprepare = 31, + .tlpx = 23, +}; + +static const struct imx290_csi_cfg imx290_csi_445_5mhz = { + /* 445.5MHz or 891Mbit/s per lane */ + .repetition = 0x00, + .tclkpost = 119, + .thszero = 103, + .thsprepare = 71, + .tclktrail = 55, + .thstrail = 63, + .tclkzero = 255, + .tclkprepare = 63, + .tlpx = 55, +}; + +static const struct imx290_csi_cfg imx290_csi_148_5mhz = { + /* 148.5MHz or 297Mbit/s per lane */ + .repetition = 0x10, + .tclkpost = 79, + .thszero = 47, + .thsprepare = 23, + .tclktrail = 23, + .thstrail = 23, + .tclkzero = 87, + .tclkprepare = 23, + .tlpx = 23, +}; + +static const struct imx290_csi_cfg imx290_csi_297mhz = { + /* 297MHz or 594Mbit/s per lane */ + .repetition = 0x00, + .tclkpost = 103, + .thszero = 87, + .thsprepare = 47, + .tclktrail = 39, + .thstrail = 47, + .tclkzero = 191, + .tclkprepare = 47, + .tlpx = 39, +}; + /* supported link frequencies */ #define FREQ_INDEX_1080P 0 #define FREQ_INDEX_720P 1 @@ -562,6 +606,42 @@ static int imx290_set_black_level(struct imx290 *imx290, black_level >> (16 - bpp), err); } +static int imx290_set_csi_config(struct imx290 *imx290) +{ + const s64 *link_freqs = imx290_link_freqs_ptr(imx290); + const struct imx290_csi_cfg *csi_cfg; + int ret = 0; + + switch (link_freqs[imx290->current_mode->link_freq_index]) { + case 445500000: + csi_cfg = &imx290_csi_445_5mhz; + break; + case 297000000: + csi_cfg = &imx290_csi_297mhz; + break; + case 222750000: + csi_cfg = &imx290_csi_222_75mhz; + break; + case 148500000: + csi_cfg = &imx290_csi_148_5mhz; + break; + default: + return -EINVAL; + } + + imx290_write(imx290, IMX290_REPETITION, csi_cfg->repetition, &ret); + imx290_write(imx290, IMX290_TCLKPOST, csi_cfg->tclkpost, &ret); + imx290_write(imx290, IMX290_THSZERO, csi_cfg->thszero, &ret); + imx290_write(imx290, IMX290_THSPREPARE, csi_cfg->thsprepare, &ret); + imx290_write(imx290, IMX290_TCLKTRAIL, csi_cfg->tclktrail, &ret); + imx290_write(imx290, IMX290_THSTRAIL, csi_cfg->thstrail, &ret); + imx290_write(imx290, IMX290_TCLKZERO, csi_cfg->tclkzero, &ret); + imx290_write(imx290, IMX290_TCLKPREPARE, csi_cfg->tclkprepare, &ret); + imx290_write(imx290, IMX290_TLPX, csi_cfg->tlpx, &ret); + + return ret; +} + static int imx290_setup_format(struct imx290 *imx290, const struct v4l2_mbus_framefmt *format) { @@ -774,6 +854,12 @@ static int imx290_start_streaming(struct imx290 *imx290, return ret; } + ret = imx290_set_csi_config(imx290); + if (ret < 0) { + dev_err(imx290->dev, "Could not set csi cfg\n"); + return ret; + } + /* Apply the register values related to current frame format */ format = v4l2_subdev_get_pad_format(&imx290->sd, state, 0); ret = imx290_setup_format(imx290, format);