2018-05-23 9:42 GMT+02:00 Lin Huang <hl@xxxxxxxxxxxxxx>:
> the phy config values used to fix in dp firmware, but some boards
> need change these values to do training and get the better eye diagram
> result. So support that in phy driver.
>
> Signed-off-by: Chris Zhong <zyw@xxxxxxxxxxxxxx>
> Signed-off-by: Lin Huang <hl@xxxxxxxxxxxxxx>
> ---
> Changes in v2:
> - update patch following Enric suggest
> Changes in v3:
> - delete need_software_training variable
> - add default phy config value, if dts do not define phy config value, use these value
> Changes in v4:
> - rename variable config to tcphy_default_config
> Changes in v5:
> - None
> Changes in v6:
> - split the header file to new patch
> Changes in v7:
> - add default case when check link rate
> - move struct rockchip_typec_phy new element to this patch
>
> drivers/phy/rockchip/phy-rockchip-typec.c | 263 ++++++++++++++++++++++++------
> include/soc/rockchip/rockchip_phy_typec.h | 8 +
> 2 files changed, 218 insertions(+), 53 deletions(-)
>
> diff --git a/drivers/phy/rockchip/phy-rockchip-typec.c b/drivers/phy/rockchip/phy-rockchip-typec.c
> index 795055f..69af90e 100644
> --- a/drivers/phy/rockchip/phy-rockchip-typec.c
> +++ b/drivers/phy/rockchip/phy-rockchip-typec.c
> @@ -324,21 +324,29 @@
> * clock 0: PLL 0 div 1
> * clock 1: PLL 1 div 2
> */
> -#define CLK_PLL_CONFIG 0X30
> +#define CLK_PLL1_DIV1 0x20
> +#define CLK_PLL1_DIV2 0x30
> #define CLK_PLL_MASK 0x33
>
> #define CMN_READY BIT(0)
>
> +#define DP_PLL_CLOCK_ENABLE_ACK BIT(3)
> #define DP_PLL_CLOCK_ENABLE BIT(2)
> +#define DP_PLL_ENABLE_ACK BIT(1)
> #define DP_PLL_ENABLE BIT(0)
> #define DP_PLL_DATA_RATE_RBR ((2 << 12) | (4 << 8))
> #define DP_PLL_DATA_RATE_HBR ((2 << 12) | (4 << 8))
> #define DP_PLL_DATA_RATE_HBR2 ((1 << 12) | (2 << 8))
> +#define DP_PLL_DATA_RATE_MASK 0xff00
>
> -#define DP_MODE_A0 BIT(4)
> -#define DP_MODE_A2 BIT(6)
> -#define DP_MODE_ENTER_A0 0xc101
> -#define DP_MODE_ENTER_A2 0xc104
> +#define DP_MODE_MASK 0xf
> +#define DP_MODE_ENTER_A0 BIT(0)
> +#define DP_MODE_ENTER_A2 BIT(2)
> +#define DP_MODE_ENTER_A3 BIT(3)
> +#define DP_MODE_A0_ACK BIT(4)
> +#define DP_MODE_A2_ACK BIT(6)
> +#define DP_MODE_A3_ACK BIT(7)
> +#define DP_LINK_RESET_DEASSERTED BIT(8)
>
> #define PHY_MODE_SET_TIMEOUT 100000
>
> @@ -350,6 +358,8 @@
> #define MODE_DFP_USB BIT(1)
> #define MODE_DFP_DP BIT(2)
>
> +#define DP_DEFAULT_RATE 162000
> +
> struct phy_reg {
> u16 value;
> u32 addr;
> @@ -372,15 +382,15 @@ struct phy_reg usb3_pll_cfg[] = {
> { 0x8, CMN_DIAG_PLL0_LF_PROG },
> };
>
> -struct phy_reg dp_pll_cfg[] = {
> +struct phy_reg dp_pll_rbr_cfg[] = {
> { 0xf0, CMN_PLL1_VCOCAL_INIT },
> { 0x18, CMN_PLL1_VCOCAL_ITER },
> { 0x30b9, CMN_PLL1_VCOCAL_START },
> - { 0x21c, CMN_PLL1_INTDIV },
> + { 0x87, CMN_PLL1_INTDIV },
> { 0, CMN_PLL1_FRACDIV },
> - { 0x5, CMN_PLL1_HIGH_THR },
> - { 0x35, CMN_PLL1_SS_CTRL1 },
> - { 0x7f1e, CMN_PLL1_SS_CTRL2 },
> + { 0x22, CMN_PLL1_HIGH_THR },
> + { 0x8000, CMN_PLL1_SS_CTRL1 },
> + { 0, CMN_PLL1_SS_CTRL2 },
> { 0x20, CMN_PLL1_DSM_DIAG },
> { 0, CMN_PLLSM1_USER_DEF_CTRL },
> { 0, CMN_DIAG_PLL1_OVRD },
> @@ -391,9 +401,52 @@ struct phy_reg dp_pll_cfg[] = {
> { 0x8, CMN_DIAG_PLL1_LF_PROG },
> { 0x100, CMN_DIAG_PLL1_PTATIS_TUNE1 },
> { 0x7, CMN_DIAG_PLL1_PTATIS_TUNE2 },
> - { 0x4, CMN_DIAG_PLL1_INCLK_CTRL },
> + { 0x1, CMN_DIAG_PLL1_INCLK_CTRL },
> };
>
> +struct phy_reg dp_pll_hbr_cfg[] = {
> + { 0xf0, CMN_PLL1_VCOCAL_INIT },
> + { 0x18, CMN_PLL1_VCOCAL_ITER },
> + { 0x30b4, CMN_PLL1_VCOCAL_START },
> + { 0xe1, CMN_PLL1_INTDIV },
> + { 0, CMN_PLL1_FRACDIV },
> + { 0x5, CMN_PLL1_HIGH_THR },
> + { 0x8000, CMN_PLL1_SS_CTRL1 },
> + { 0, CMN_PLL1_SS_CTRL2 },
> + { 0x20, CMN_PLL1_DSM_DIAG },
> + { 0x1000, CMN_PLLSM1_USER_DEF_CTRL },
> + { 0, CMN_DIAG_PLL1_OVRD },
> + { 0, CMN_DIAG_PLL1_FBH_OVRD },
> + { 0, CMN_DIAG_PLL1_FBL_OVRD },
> + { 0x7, CMN_DIAG_PLL1_V2I_TUNE },
> + { 0x45, CMN_DIAG_PLL1_CP_TUNE },
> + { 0x8, CMN_DIAG_PLL1_LF_PROG },
> + { 0x1, CMN_DIAG_PLL1_PTATIS_TUNE1 },
> + { 0x1, CMN_DIAG_PLL1_PTATIS_TUNE2 },
> + { 0x1, CMN_DIAG_PLL1_INCLK_CTRL },
> +};
> +
> +struct phy_reg dp_pll_hbr2_cfg[] = {
> + { 0xf0, CMN_PLL1_VCOCAL_INIT },
> + { 0x18, CMN_PLL1_VCOCAL_ITER },
> + { 0x30b4, CMN_PLL1_VCOCAL_START },
> + { 0xe1, CMN_PLL1_INTDIV },
> + { 0, CMN_PLL1_FRACDIV },
> + { 0x5, CMN_PLL1_HIGH_THR },
> + { 0x8000, CMN_PLL1_SS_CTRL1 },
> + { 0, CMN_PLL1_SS_CTRL2 },
> + { 0x20, CMN_PLL1_DSM_DIAG },
> + { 0x1000, CMN_PLLSM1_USER_DEF_CTRL },
> + { 0, CMN_DIAG_PLL1_OVRD },
> + { 0, CMN_DIAG_PLL1_FBH_OVRD },
> + { 0, CMN_DIAG_PLL1_FBL_OVRD },
> + { 0x7, CMN_DIAG_PLL1_V2I_TUNE },
> + { 0x45, CMN_DIAG_PLL1_CP_TUNE },
> + { 0x8, CMN_DIAG_PLL1_LF_PROG },
> + { 0x1, CMN_DIAG_PLL1_PTATIS_TUNE1 },
> + { 0x1, CMN_DIAG_PLL1_PTATIS_TUNE2 },
> + { 0x1, CMN_DIAG_PLL1_INCLK_CTRL },
> +};
> static const struct rockchip_usb3phy_port_cfg rk3399_usb3phy_port_cfgs[] = {
> {
> .reg = 0xff7c0000,
> @@ -418,6 +471,24 @@ static const struct rockchip_usb3phy_port_cfg rk3399_usb3phy_port_cfgs[] = {
> { /* sentinel */ }
> };
>
> +/* default phy config */
> +static const struct phy_config tcphy_default_config[3][4] = {
> + {{ .swing = 0x2a, .pe = 0x00 },
> + { .swing = 0x1f, .pe = 0x15 },
> + { .swing = 0x14, .pe = 0x22 },
> + { .swing = 0x02, .pe = 0x2b } },
> +
> + {{ .swing = 0x21, .pe = 0x00 },
> + { .swing = 0x12, .pe = 0x15 },
> + { .swing = 0x02, .pe = 0x22 },
> + { .swing = 0, .pe = 0 } },
> +
> + {{ .swing = 0x15, .pe = 0x00 },
> + { .swing = 0x00, .pe = 0x15 },
> + { .swing = 0, .pe = 0 },
> + { .swing = 0, .pe = 0 } },
> +};
> +
> static void tcphy_cfg_24m(struct rockchip_typec_phy *tcphy)
> {
> u32 i, rdata;
> @@ -439,7 +510,7 @@ static void tcphy_cfg_24m(struct rockchip_typec_phy *tcphy)
>
> rdata = readl(tcphy->base + CMN_DIAG_HSCLK_SEL);
> rdata &= ~CLK_PLL_MASK;
> - rdata |= CLK_PLL_CONFIG;
> + rdata |= CLK_PLL1_DIV2;
> writel(rdata, tcphy->base + CMN_DIAG_HSCLK_SEL);
> }
>
> @@ -453,17 +524,45 @@ static void tcphy_cfg_usb3_pll(struct rockchip_typec_phy *tcphy)
> tcphy->base + usb3_pll_cfg[i].addr);
> }
>
> -static void tcphy_cfg_dp_pll(struct rockchip_typec_phy *tcphy)
> +static void tcphy_cfg_dp_pll(struct rockchip_typec_phy *tcphy, int link_rate)
> {
> - u32 i;
> + struct phy_reg *phy_cfg;
> + u32 clk_ctrl;
> + u32 i, cfg_size, hsclk_sel;
> +
> + hsclk_sel = readl(tcphy->base + CMN_DIAG_HSCLK_SEL);
> + hsclk_sel &= ~CLK_PLL_MASK;
> +
> + switch (link_rate) {
> + case 540000:
> + clk_ctrl = DP_PLL_DATA_RATE_HBR2;
> + hsclk_sel |= CLK_PLL1_DIV1;
> + phy_cfg = dp_pll_hbr2_cfg;
> + cfg_size = ARRAY_SIZE(dp_pll_hbr2_cfg);
> + break;
> + case 270000:
> + clk_ctrl = DP_PLL_DATA_RATE_HBR;
> + hsclk_sel |= CLK_PLL1_DIV2;
> + phy_cfg = dp_pll_hbr_cfg;
> + cfg_size = ARRAY_SIZE(dp_pll_hbr_cfg);
> + break;
> + case 162000:
> + default:
> + clk_ctrl = DP_PLL_DATA_RATE_RBR;
> + hsclk_sel |= CLK_PLL1_DIV2;
> + phy_cfg = dp_pll_rbr_cfg;
> + cfg_size = ARRAY_SIZE(dp_pll_rbr_cfg);
> + break;
> + }
>
> - /* set the default mode to RBR */
> - writel(DP_PLL_CLOCK_ENABLE | DP_PLL_ENABLE | DP_PLL_DATA_RATE_RBR,
> - tcphy->base + DP_CLK_CTL);
> + clk_ctrl |= DP_PLL_CLOCK_ENABLE | DP_PLL_ENABLE;
> + writel(clk_ctrl, tcphy->base + DP_CLK_CTL);
> +
> + writel(hsclk_sel, tcphy->base + CMN_DIAG_HSCLK_SEL);
>
> /* load the configuration of PLL1 */
> - for (i = 0; i < ARRAY_SIZE(dp_pll_cfg); i++)
> - writel(dp_pll_cfg[i].value, tcphy->base + dp_pll_cfg[i].addr);
> + for (i = 0; i < cfg_size; i++)
> + writel(phy_cfg[i].value, tcphy->base + phy_cfg[i].addr);
> }
>
> static void tcphy_tx_usb3_cfg_lane(struct rockchip_typec_phy *tcphy, u32 lane)
> @@ -490,9 +589,10 @@ static void tcphy_rx_usb3_cfg_lane(struct rockchip_typec_phy *tcphy, u32 lane)
> writel(0xfb, tcphy->base + XCVR_DIAG_BIDI_CTRL(lane));
> }
>
> -static void tcphy_dp_cfg_lane(struct rockchip_typec_phy *tcphy, u32 lane)
> +static void tcphy_dp_cfg_lane(struct rockchip_typec_phy *tcphy, int link_rate,
> + u8 swing, u8 pre_emp, u32 lane)
> {
> - u16 rdata;
> + u16 val;
>
> writel(0xbefc, tcphy->base + XCVR_PSM_RCTRL(lane));
> writel(0x6799, tcphy->base + TX_PSC_A0(lane));
> @@ -500,25 +600,32 @@ static void tcphy_dp_cfg_lane(struct rockchip_typec_phy *tcphy, u32 lane)
> writel(0x98, tcphy->base + TX_PSC_A2(lane));
> writel(0x98, tcphy->base + TX_PSC_A3(lane));
>
> - writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_000(lane));
> - writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_001(lane));
> - writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_010(lane));
> - writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_011(lane));
> - writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_100(lane));
> - writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_101(lane));
> - writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_110(lane));
> - writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_111(lane));
> - writel(0, tcphy->base + TX_TXCC_CPOST_MULT_10(lane));
> - writel(0, tcphy->base + TX_TXCC_CPOST_MULT_01(lane));
> - writel(0, tcphy->base + TX_TXCC_CPOST_MULT_00(lane));
> - writel(0, tcphy->base + TX_TXCC_CPOST_MULT_11(lane));
> -
> - writel(0x128, tcphy->base + TX_TXCC_CAL_SCLR_MULT(lane));
> - writel(0x400, tcphy->base + TX_DIAG_TX_DRV(lane));
> -
> - rdata = readl(tcphy->base + XCVR_DIAG_PLLDRC_CTRL(lane));
> - rdata = (rdata & 0x8fff) | 0x6000;
> - writel(rdata, tcphy->base + XCVR_DIAG_PLLDRC_CTRL(lane));
> + writel(tcphy->config[swing][pre_emp].swing,
> + tcphy->base + TX_TXCC_MGNFS_MULT_000(lane));
> + writel(tcphy->config[swing][pre_emp].pe,
> + tcphy->base + TX_TXCC_CPOST_MULT_00(lane));
> +
> + if (swing == 2 && pre_emp == 0 && link_rate != 540000) {
> + writel(0x700, tcphy->base + TX_DIAG_TX_DRV(lane));
> + writel(0x13c, tcphy->base + TX_TXCC_CAL_SCLR_MULT(lane));
> + } else {
> + writel(0x128, tcphy->base + TX_TXCC_CAL_SCLR_MULT(lane));
> + writel(0x0400, tcphy->base + TX_DIAG_TX_DRV(lane));
> + }
> +
> + val = readl(tcphy->base + XCVR_DIAG_PLLDRC_CTRL(lane));
> + val = val & 0x8fff;
> + switch (link_rate) {
> + case 540000:
> + val |= (4 << 12);
> + break;
> + case 162000:
> + case 270000:
> + default:
> + val |= (6 << 12);
> + break;
> + }
> + writel(val, tcphy->base + XCVR_DIAG_PLLDRC_CTRL(lane));
> }
>
> static inline int property_enable(struct rockchip_typec_phy *tcphy,
> @@ -709,30 +816,33 @@ static int tcphy_phy_init(struct rockchip_typec_phy *tcphy, u8 mode)
> tcphy_cfg_24m(tcphy);
>
> if (mode == MODE_DFP_DP) {
> - tcphy_cfg_dp_pll(tcphy);
> + tcphy_cfg_dp_pll(tcphy, DP_DEFAULT_RATE);
> for (i = 0; i < 4; i++)
> - tcphy_dp_cfg_lane(tcphy, i);
> + tcphy_dp_cfg_lane(tcphy, DP_DEFAULT_RATE, 0, 0, i);
>
> writel(PIN_ASSIGN_C_E, tcphy->base + PMA_LANE_CFG);
> } else {
> tcphy_cfg_usb3_pll(tcphy);
> - tcphy_cfg_dp_pll(tcphy);
> + tcphy_cfg_dp_pll(tcphy, DP_DEFAULT_RATE);
> if (tcphy->flip) {
> tcphy_tx_usb3_cfg_lane(tcphy, 3);
> tcphy_rx_usb3_cfg_lane(tcphy, 2);
> - tcphy_dp_cfg_lane(tcphy, 0);
> - tcphy_dp_cfg_lane(tcphy, 1);
> + tcphy_dp_cfg_lane(tcphy, DP_DEFAULT_RATE, 0, 0, 0);
> + tcphy_dp_cfg_lane(tcphy, DP_DEFAULT_RATE, 0, 0, 1);
> } else {
> tcphy_tx_usb3_cfg_lane(tcphy, 0);
> tcphy_rx_usb3_cfg_lane(tcphy, 1);
> - tcphy_dp_cfg_lane(tcphy, 2);
> - tcphy_dp_cfg_lane(tcphy, 3);
> + tcphy_dp_cfg_lane(tcphy, DP_DEFAULT_RATE, 0, 0, 2);
> + tcphy_dp_cfg_lane(tcphy, DP_DEFAULT_RATE, 0, 0, 3);
> }
>
> writel(PIN_ASSIGN_D_F, tcphy->base + PMA_LANE_CFG);
> }
>
> - writel(DP_MODE_ENTER_A2, tcphy->base + DP_MODE_CTL);
> + val = readl(tcphy->base + DP_MODE_CTL);
> + val &= ~DP_MODE_MASK;
> + val |= DP_MODE_ENTER_A2 | DP_LINK_RESET_DEASSERTED;
> + writel(val, tcphy->base + DP_MODE_CTL);
>
> reset_control_deassert(tcphy->uphy_rst);
>
> @@ -945,7 +1055,7 @@ static int rockchip_dp_phy_power_on(struct phy *phy)
> property_enable(tcphy, &cfg->uphy_dp_sel, 1);
>
> ret = readx_poll_timeout(readl, tcphy->base + DP_MODE_CTL,
> - val, val & DP_MODE_A2, 1000,
> + val, val & DP_MODE_A2_ACK, 1000,
> PHY_MODE_SET_TIMEOUT);
> if (ret < 0) {
> dev_err(tcphy->dev, "failed to wait TCPHY enter A2\n");
> @@ -954,13 +1064,19 @@ static int rockchip_dp_phy_power_on(struct phy *phy)
>
> tcphy_dp_aux_calibration(tcphy);
>
> - writel(DP_MODE_ENTER_A0, tcphy->base + DP_MODE_CTL);
> + /* enter A0 mode */
> + val = readl(tcphy->base + DP_MODE_CTL);
> + val &= ~DP_MODE_MASK;
> + val |= DP_MODE_ENTER_A0;
> + writel(val, tcphy->base + DP_MODE_CTL);
>
> ret = readx_poll_timeout(readl, tcphy->base + DP_MODE_CTL,
> - val, val & DP_MODE_A0, 1000,
> + val, val & DP_MODE_A0_ACK, 1000,
> PHY_MODE_SET_TIMEOUT);
> if (ret < 0) {
> - writel(DP_MODE_ENTER_A2, tcphy->base + DP_MODE_CTL);
> + val &= ~DP_MODE_MASK;
> + val |= DP_MODE_ENTER_A2;
> + writel(val, tcphy->base + DP_MODE_CTL);
> dev_err(tcphy->dev, "failed to wait TCPHY enter A0\n");
> goto power_on_finish;
> }
> @@ -978,6 +1094,7 @@ static int rockchip_dp_phy_power_on(struct phy *phy)
> static int rockchip_dp_phy_power_off(struct phy *phy)
> {
> struct rockchip_typec_phy *tcphy = phy_get_drvdata(phy);
> + u32 val;
>
> mutex_lock(&tcphy->lock);
>
> @@ -986,7 +1103,10 @@ static int rockchip_dp_phy_power_off(struct phy *phy)
>
> tcphy->mode &= ~MODE_DFP_DP;
>
> - writel(DP_MODE_ENTER_A2, tcphy->base + DP_MODE_CTL);
> + val = readl(tcphy->base + DP_MODE_CTL);
> + val &= ~DP_MODE_MASK;
> + val |= DP_MODE_ENTER_A2;
> + writel(val, tcphy->base + DP_MODE_CTL);
>
> if (tcphy->mode == MODE_DISCONNECT)
> tcphy_phy_deinit(tcphy);
> @@ -1002,9 +1122,35 @@ static const struct phy_ops rockchip_dp_phy_ops = {
> .owner = THIS_MODULE,
> };
>
> +static int typec_dp_phy_config(struct phy *phy, int link_rate,
> + int lanes, u8 swing, u8 pre_emp)
> +{
> + struct rockchip_typec_phy *tcphy = phy_get_drvdata(phy);
> + u8 i;
> +
> + tcphy_cfg_dp_pll(tcphy, link_rate);
> +
> + if (tcphy->mode == MODE_DFP_DP) {
> + for (i = 0; i < 4; i++)
> + tcphy_dp_cfg_lane(tcphy, link_rate, swing, pre_emp, i);
> + } else {
> + if (tcphy->flip) {
> + tcphy_dp_cfg_lane(tcphy, link_rate, swing, pre_emp, 0);
> + tcphy_dp_cfg_lane(tcphy, link_rate, swing, pre_emp, 1);
> + } else {
> + tcphy_dp_cfg_lane(tcphy, link_rate, swing, pre_emp, 2);
> + tcphy_dp_cfg_lane(tcphy, link_rate, swing, pre_emp, 3);
> + }
> + }
> +
> + return 0;
> +}
> +
> static int tcphy_parse_dt(struct rockchip_typec_phy *tcphy,
> struct device *dev)
> {
> + int ret;
> +
> tcphy->grf_regs = syscon_regmap_lookup_by_phandle(dev->of_node,
> "rockchip,grf");
> if (IS_ERR(tcphy->grf_regs)) {
> @@ -1042,6 +1188,16 @@ static int tcphy_parse_dt(struct rockchip_typec_phy *tcphy,
> return PTR_ERR(tcphy->tcphy_rst);
> }
>
> + /*
> + * check if phy_config pass from dts, if no,
> + * use default phy config value.
> + */
> + ret = of_property_read_u32_array(dev->of_node, "rockchip,phy-config",
> + (u32 *)tcphy->config, sizeof(tcphy->config) / sizeof(u32));
> + if (ret)
> + memcpy(tcphy->config, tcphy_default_config,
> + sizeof(tcphy->config));
> +
> return 0;
> }
>
> @@ -1126,6 +1282,7 @@ static int rockchip_typec_phy_probe(struct platform_device *pdev)
> }
> }
>
> + tcphy->typec_phy_config = typec_dp_phy_config;
> pm_runtime_enable(dev);
>
> for_each_available_child_of_node(np, child_np) {
> diff --git a/include/soc/rockchip/rockchip_phy_typec.h b/include/soc/rockchip/rockchip_phy_typec.h
> index 4afe039..8e45c4d 100644
> --- a/include/soc/rockchip/rockchip_phy_typec.h
> +++ b/include/soc/rockchip/rockchip_phy_typec.h
> @@ -35,6 +35,11 @@ struct rockchip_usb3phy_port_cfg {
> struct usb3phy_reg uphy_dp_sel;
> };
>
> +struct phy_config {
> + int swing;
> + int pe;
> +};
> +
> struct rockchip_typec_phy {
> struct device *dev;
> void __iomem *base;
> @@ -50,6 +55,9 @@ struct rockchip_typec_phy {
> struct mutex lock;
> bool flip;
> u8 mode;
> + struct phy_config config[3][4];
> + int (*typec_phy_config)(struct phy *phy, int link_rate,
> + int lanes, u8 swing, u8 pre_emp);
> };
>
> #endif
> --
> 2.7.4
>
Tested-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx>
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