mfd: twl6030-irq: Remove unused twl6030_mmc_card_detect*

twl6030_mmc_card_detect() and twl6030_mmc_card_detect_config() have been
unused since 2013's commit b2ff4790612b ("ARM: OMAP2+: Remove legacy
omap4_twl6030_hsmmc_init")

Remove them.

Signed-off-by: "Dr. David Alan Gilbert" <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Lee Jones <[e-mail]>

drivers/mfd/twl6030-irq.c

···
 }
 EXPORT_SYMBOL(twl6030_interrupt_mask);
 
-int twl6030_mmc_card_detect_config(void)
-{
-	int ret;
-	u8 reg_val = 0;
-
-	/* Unmasking the Card detect Interrupt line for MMC1 from Phoenix */
-	twl6030_interrupt_unmask(TWL6030_MMCDETECT_INT_MASK,
-						REG_INT_MSK_LINE_B);
-	twl6030_interrupt_unmask(TWL6030_MMCDETECT_INT_MASK,
-						REG_INT_MSK_STS_B);
-	/*
-	 * Initially Configuring MMC_CTRL for receiving interrupts &
-	 * Card status on TWL6030 for MMC1
-	 */
-	ret = twl_i2c_read_u8(TWL6030_MODULE_ID0, &reg_val, TWL6030_MMCCTRL);
-	if (ret < 0) {
-		pr_err("twl6030: Failed to read MMCCTRL, error %d\n", ret);
-		return ret;
-	}
-	reg_val &= ~VMMC_AUTO_OFF;
-	reg_val |= SW_FC;
-	ret = twl_i2c_write_u8(TWL6030_MODULE_ID0, reg_val, TWL6030_MMCCTRL);
-	if (ret < 0) {
-		pr_err("twl6030: Failed to write MMCCTRL, error %d\n", ret);
-		return ret;
-	}
-
-	/* Configuring PullUp-PullDown register */
-	ret = twl_i2c_read_u8(TWL6030_MODULE_ID0, &reg_val,
-						TWL6030_CFG_INPUT_PUPD3);
-	if (ret < 0) {
-		pr_err("twl6030: Failed to read CFG_INPUT_PUPD3, error %d\n",
-									ret);
-		return ret;
-	}
-	reg_val &= ~(MMC_PU | MMC_PD);
-	ret = twl_i2c_write_u8(TWL6030_MODULE_ID0, reg_val,
-						TWL6030_CFG_INPUT_PUPD3);
-	if (ret < 0) {
-		pr_err("twl6030: Failed to write CFG_INPUT_PUPD3, error %d\n",
-									ret);
-		return ret;
-	}
-
-	return irq_find_mapping(twl6030_irq->irq_domain,
-				 MMCDETECT_INTR_OFFSET);
-}
-EXPORT_SYMBOL(twl6030_mmc_card_detect_config);
-
-int twl6030_mmc_card_detect(struct device *dev, int slot)
-{
-	int ret = -EIO;
-	u8 read_reg = 0;
-	struct platform_device *pdev = to_platform_device(dev);
-
-	if (pdev->id) {
-		/* TWL6030 provide's Card detect support for
-		 * only MMC1 controller.
-		 */
-		pr_err("Unknown MMC controller %d in %s\n", pdev->id, __func__);
-		return ret;
-	}
-	/*
-	 * BIT0 of MMC_CTRL on TWL6030 provides card status for MMC1
-	 * 0 - Card not present ,1 - Card present
-	 */
-	ret = twl_i2c_read_u8(TWL6030_MODULE_ID0, &read_reg,
-						TWL6030_MMCCTRL);
-	if (ret >= 0)
-		ret = read_reg & STS_MMC;
-	return ret;
-}
-EXPORT_SYMBOL(twl6030_mmc_card_detect);
-
 static int twl6030_irq_map(struct irq_domain *d, unsigned int virq,
 			      irq_hw_number_t hwirq)
 {

include/linux/mfd/twl.h

···
 int twl6030_interrupt_unmask(u8 bit_mask, u8 offset);
 int twl6030_interrupt_mask(u8 bit_mask, u8 offset);
 
-/* Card detect Configuration for MMC1 Controller on OMAP4 */
-#ifdef CONFIG_TWL4030_CORE
-int twl6030_mmc_card_detect_config(void);
-#else
-static inline int twl6030_mmc_card_detect_config(void)
-{
-	pr_debug("twl6030_mmc_card_detect_config not supported\n");
-	return 0;
-}
-#endif
-
-/* MMC1 Controller on OMAP4 uses Phoenix irq for Card detect */
-#ifdef CONFIG_TWL4030_CORE
-int twl6030_mmc_card_detect(struct device *dev, int slot);
-#else
-static inline int twl6030_mmc_card_detect(struct device *dev, int slot)
-{
-	pr_debug("Call back twl6030_mmc_card_detect not supported\n");
-	return -EIO;
-}
-#endif
 /*----------------------------------------------------------------------*/
 
 /*