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Commit e9eaac3d authored by Hardik Kantilal Patel's avatar Hardik Kantilal Patel
Browse files

wcnss: Reset IRIS card before Starting IRIS XO configuration 



Set iris_reset bit of PMU CFG register to reset the IRIS
card before Starting IRIS XO configuration.

Change-Id: I49dd6812995c8c284c4497b4c356b82e95f28626
CRs-Fixed: 664642
Signed-off-by: default avatarHardik Kantilal Patel <hkpatel@codeaurora.org>
parent b01ab4e5

drivers/net/wireless/wcnss/wcnss_vreg.c

+15 −0
Original line number Diff line number Diff line
@@ -47,6 +47,8 @@ static int auto_detect; 
#define WCNSS_PMU_CFG_GC_BUS_MUX_SEL_TOP   BIT(5)

#define WCNSS_PMU_CFG_IRIS_XO_CFG_STS      BIT(6) /* 1: in progress, 0: done */



#define WCNSS_PMU_CFG_IRIS_RESET           BIT(7)

#define WCNSS_PMU_CFG_IRIS_RESET_STS       BIT(8) /* 1: in progress, 0: done */

#define WCNSS_PMU_CFG_IRIS_XO_READ         BIT(9)

#define WCNSS_PMU_CFG_IRIS_XO_READ_STS     BIT(10)
@@ -277,6 +279,19 @@ configure_iris_xo(struct device *dev, 


		writel_relaxed(reg, pmu_conf_reg);



		/* Reset IRIS */

		reg |= WCNSS_PMU_CFG_IRIS_RESET;

		writel_relaxed(reg, pmu_conf_reg);



		/* Wait for PMU_CFG.iris_reg_reset_sts */

		while (readl_relaxed(pmu_conf_reg) &

				WCNSS_PMU_CFG_IRIS_RESET_STS)

			cpu_relax();



		/* Reset iris reset bit */

		reg &= ~WCNSS_PMU_CFG_IRIS_RESET;

		writel_relaxed(reg, pmu_conf_reg);



		/* Start IRIS XO configuration */

		reg |= WCNSS_PMU_CFG_IRIS_XO_CFG;

		writel_relaxed(reg, pmu_conf_reg);