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1// SPDX-License-Identifier: GPL-2.0+2#include <linux/device.h>3#include <linux/regmap.h>4#include <linux/mfd/syscon.h>5#include <linux/bitops.h>6#include <linux/module.h>7#include "pl111_nomadik.h"8 9#define PMU_CTRL_OFFSET 0x000010#define PMU_CTRL_LCDNDIF BIT(26)11 12void pl111_nomadik_init(struct device *dev)13{14 struct regmap *pmu_regmap;15 16 /*17 * Just bail out of this is not found, we could be running18 * multiplatform on something else than Nomadik.19 */20 pmu_regmap =21 syscon_regmap_lookup_by_compatible("stericsson,nomadik-pmu");22 if (IS_ERR(pmu_regmap))23 return;24 25 /*26 * This bit in the PMU controller multiplexes the two graphics27 * blocks found in the Nomadik STn8815. The other one is called28 * MDIF (Master Display Interface) and gets muxed out here.29 */30 regmap_update_bits(pmu_regmap,31 PMU_CTRL_OFFSET,32 PMU_CTRL_LCDNDIF,33 0);34 dev_info(dev, "set Nomadik PMU mux to CLCD mode\n");35}36EXPORT_SYMBOL_GPL(pl111_nomadik_init);37