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Commit 728f8b33 authored by Anand N Sunkad's avatar Anand N Sunkad
Browse files

wcnss: configure IRIS clock to 19.2Mhz 



Set IRIS clock to 19.2Mhz if there is no iris
card found or detected IRIS card's chip id is invalid.

Change-Id: Ib9063e67315faca0a3817c1c5df8655f57b9c381
CRs-fixed: 743022
Signed-off-by: default avatarAnand N Sunkad <asunka@codeaurora.org>
parent 75145de9

drivers/net/wireless/wcnss/wcnss_vreg.c

+28 −2
Original line number Original line Diff line number Diff line
@@ -42,6 +42,13 @@ static int is_power_on; 




#define PRONTO_IRIS_REG_READ_OFFSET       0x1134

#define PRONTO_IRIS_REG_READ_OFFSET       0x1134

#define PRONTO_IRIS_REG_CHIP_ID           0x04

#define PRONTO_IRIS_REG_CHIP_ID           0x04

/* IRIS card chip ID's */

#define WCN3660       0x0200

#define WCN3660A      0x0300

#define WCN3660B      0x0400

#define WCN3620       0x5111

#define WCN3620A      0x5112

#define WCN3610       0x9101





#define WCNSS_PMU_CFG_IRIS_XO_CFG          BIT(3)

#define WCNSS_PMU_CFG_IRIS_XO_CFG          BIT(3)

#define WCNSS_PMU_CFG_IRIS_XO_EN           BIT(4)

#define WCNSS_PMU_CFG_IRIS_XO_EN           BIT(4)
@@ -168,6 +175,24 @@ int xo_auto_detect(u32 reg) 
	}

	}

}

}





int validate_iris_chip_id(u32 reg)

{

	int iris_id;

	iris_id = reg >> 16;



	switch (iris_id) {

	case WCN3660:

	case WCN3660A:

	case WCN3660B:

	case WCN3620:

	case WCN3620A:

	case WCN3610:

		return 0;

	default:

		return 1;

	}

}



static int

static int

configure_iris_xo(struct device *dev,

configure_iris_xo(struct device *dev,

			struct wcnss_wlan_config *cfg,

			struct wcnss_wlan_config *cfg,
@@ -261,8 +286,9 @@ configure_iris_xo(struct device *dev, 




			iris_reg = readl_relaxed(iris_read_reg);

			iris_reg = readl_relaxed(iris_read_reg);

			pr_info("wcnss: IRIS Reg: %08x\n", iris_reg);

			pr_info("wcnss: IRIS Reg: %08x\n", iris_reg);

			if (iris_reg == PRONTO_IRIS_REG_CHIP_ID) {



				pr_info("wcnss: IRIS Card not Preset\n");

			if (validate_iris_chip_id(iris_reg)) {

				pr_info("wcnss: IRIS Card absent/invalid\n");

				auto_detect = WCNSS_XO_INVALID;

				auto_detect = WCNSS_XO_INVALID;

				/* Reset iris read bit */

				/* Reset iris read bit */

				reg &= ~WCNSS_PMU_CFG_IRIS_XO_READ;

				reg &= ~WCNSS_PMU_CFG_IRIS_XO_READ;