Crystal Cove is the PMIC in Baytrail-T platform. This patch provides
chip-specific support for Crystal Cove.
v2:
- Add regmap_config for Crystal Cove.
v3:
- Convert IRQ config to regmap_irq_chip.
Signed-off-by: Yang, Bin <bin.y...@intel.com>
Signed-off-by: Zhu, Lejun <lejun....@linux.intel.com>
---
drivers/mfd/intel_soc_pmic_crc.c | 175 +++++++++++++++++++++++++++++++++++++++
1 file changed, 175 insertions(+)
create mode 100644 drivers/mfd/intel_soc_pmic_crc.c
diff --git a/drivers/mfd/intel_soc_pmic_crc.c b/drivers/mfd/intel_soc_pmic_crc.c
new file mode 100644
index 0000000..341ab02
--- /dev/null
+++ b/drivers/mfd/intel_soc_pmic_crc.c
@@ -0,0 +1,175 @@
+/*
+ * intel_soc_pmic_crc.c - Device access for Crystal Cove PMIC
+ *
+ * Copyright (C) 2013, 2014 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Author: Yang, Bin <bin.y...@intel.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/mfd/core.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/acpi.h>
+#include <linux/version.h>
+#include <linux/regmap.h>
+#include <linux/mfd/intel_soc_pmic.h>
+#include "intel_soc_pmic_core.h"
+
+#define CHIP_NAME "Crystal Cove"
+#define CRYSTAL_COVE_MAX_REGISTER 0xC6
+
+#define CHIPID 0x00
+#define CHIPVER 0x01
+#define IRQLVL1 0x02
+#define MIRQLVL1 0x0E
+
+enum {
+ PWRSRC_IRQ = 0,
+ THRM_IRQ,
+ BCU_IRQ,
+ ADC_IRQ,
+ CHGR_IRQ,
+ GPIO_IRQ,
+ VHDMIOCP_IRQ
+};
+
+static struct resource gpio_resources[] = {
+ {
+ .name = "GPIO",
+ .start = GPIO_IRQ,
+ .end = GPIO_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource pwrsrc_resources[] = {
+ {
+ .name = "PWRSRC",
+ .start = PWRSRC_IRQ,
+ .end = PWRSRC_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource adc_resources[] = {
+ {
+ .name = "ADC",
+ .start = ADC_IRQ,
+ .end = ADC_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource thermal_resources[] = {
+ {
+ .name = "THERMAL",
+ .start = THRM_IRQ,
+ .end = THRM_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource bcu_resources[] = {
+ {
+ .name = "BCU",
+ .start = BCU_IRQ,
+ .end = BCU_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct mfd_cell crystal_cove_dev[] = {
+ {
+ .name = "crystal_cove_pwrsrc",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(pwrsrc_resources),
+ .resources = pwrsrc_resources,
+ },
+ {
+ .name = "crystal_cove_adc",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(adc_resources),
+ .resources = adc_resources,
+ },
+ {
+ .name = "crystal_cove_thermal",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(thermal_resources),
+ .resources = thermal_resources,
+ },
+ {
+ .name = "crystal_cove_bcu",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(bcu_resources),
+ .resources = bcu_resources,
+ },
+ {
+ .name = "crystal_cove_gpio",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(gpio_resources),
+ .resources = gpio_resources,
+ },
+};
+
+static struct regmap_config crystal_cove_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = CRYSTAL_COVE_MAX_REGISTER,
+ .cache_type = REGCACHE_NONE,
+};
+
+#define CRC_REGMAP_IRQ_VALUE(irq) { \
+ .reg_offset = 0, \
+ .mask = BIT(irq), \
+ }
+
+static const struct regmap_irq crystal_cove_irqs[] = {
+ [PWRSRC_IRQ] = CRC_REGMAP_IRQ_VALUE(PWRSRC_IRQ),
+ [THRM_IRQ] = CRC_REGMAP_IRQ_VALUE(THRM_IRQ),
+ [BCU_IRQ] = CRC_REGMAP_IRQ_VALUE(BCU_IRQ),
+ [ADC_IRQ] = CRC_REGMAP_IRQ_VALUE(ADC_IRQ),
+ [CHGR_IRQ] = CRC_REGMAP_IRQ_VALUE(CHGR_IRQ),
+ [GPIO_IRQ] = CRC_REGMAP_IRQ_VALUE(GPIO_IRQ),
+ [VHDMIOCP_IRQ] = CRC_REGMAP_IRQ_VALUE(VHDMIOCP_IRQ),
+};
+
+static struct regmap_irq_chip crystal_cove_irq_chip = {
+ .name = CHIP_NAME,
+ .irqs = crystal_cove_irqs,
+ .num_irqs = ARRAY_SIZE(crystal_cove_irqs),
+ .num_regs = 1,
+ .status_base = IRQLVL1,
+ .mask_base = MIRQLVL1,
+};
+
+static int crystal_cove_init(void)
+{
+ pr_debug("%s: ID 0x%02X, VERSION 0x%02X\n", CHIP_NAME,
+ intel_soc_pmic_readb(CHIPID), intel_soc_pmic_readb(CHIPVER));
+ return 0;
+}
+
+struct intel_soc_pmic_config crystal_cove_pmic = {
+ .label = CHIP_NAME,
+ .irq_flags = IRQF_TRIGGER_RISING,
+ .init = crystal_cove_init,
+ .cell_dev = crystal_cove_dev,
+ .n_cell_devs = ARRAY_SIZE(crystal_cove_dev),
+ .regmap_cfg = &crystal_cove_regmap_config,
+ .irq_chip = &crystal_cove_irq_chip,
+};
--
1.8.3.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
