sysctl: Expose power up/down reason and memory info (efda3d36) · Commits · e / devices / android_kernel_fairphone_FP3

arch/arm64/include/asm/processor.h

100644 → 100755

+3 −0

Original line number	Diff line number	Diff line
		@@ -81,7 +81,10 @@ extern phys_addr_t arm64_dma_phys_limit;
		#define ARCH_LOW_ADDRESS_LIMIT (arm64_dma_phys_limit - 1)

		extern unsigned int boot_reason;
		extern unsigned int qpnp_pon_reason_extern;
		extern unsigned int qpnp_poff_reason_extern;
		extern unsigned int cold_boot;
		extern char ddr_vendor[32];

		struct debug_info {
		/* Have we suspended stepping by a debugger? */

drivers/input/misc/qpnp-power-on.c

100644 → 100755

+8 −1

Original line number	Diff line number	Diff line
		@@ -313,6 +313,8 @@ static const char * const qpnp_poff_reason[] = {
		[39] = "Triggered from S3_RESET_KPDPWR_ANDOR_RESIN (power key and/or reset line)",
		};

		unsigned int qpnp_pon_reason_extern = 0;
		unsigned int qpnp_poff_reason_extern = 0;
		static int
		qpnp_pon_masked_write(struct qpnp_pon *pon, u16 addr, u8 mask, u8 val)
		{
		@@ -2287,8 +2289,10 @@ static int qpnp_pon_probe(struct platform_device *pdev)
		goto err_out;
		}

		if (sys_reset)
		if (sys_reset) {
		boot_reason = ffs(pon_sts);
		qpnp_pon_reason_extern = ffs(pon_sts);
		}

		index = ffs(pon_sts) - 1;
		cold_boot = !qpnp_pon_is_warm_reset();
		@@ -2322,6 +2326,9 @@ static int qpnp_pon_probe(struct platform_device *pdev)
		}
		poff_sts = buf[0] \| (buf[1] << 8);
		}
		if (sys_reset) {
		qpnp_poff_reason_extern = ffs(poff_sts);
		}
		index = ffs(poff_sts) - 1 + reason_index_offset;
		if (index >= ARRAY_SIZE(qpnp_poff_reason) \|\| index < 0) {
		dev_info(&pon->pdev->dev,

drivers/soc/qcom/socinfo.c

100644 → 100755

+62 −0

Original line number	Diff line number	Diff line
		@@ -2007,6 +2007,64 @@ static void socinfo_select_format(void)
		}
		}

		char ddr_vendor[32] = "";
		/* BOOT.BF.3.3.2\boot_images\core\api\boot\ddr_common.h */
		typedef enum
		{
		RESERVED_0, /*< Reserved for future use. /
		SAMSUNG, /*< Samsung. /
		QIMONDA, /*< Qimonda. /
		ELPIDA, /*< Elpida Memory, Inc. /
		ETRON, /*< Etron Technology, Inc. /
		NANYA, /*< Nanya Technology Corporation. /
		HYNIX, /*< Hynix Semiconductor Inc. /
		MOSEL, /*< Mosel Vitelic Corporation. /
		WINBOND, /*< Winbond Electronics Corp. /
		ESMT, /*< Elite Semiconductor Memory Technology Inc. /
		RESERVED_1, /*< Reserved for future use. /
		SPANSION, /*< Spansion Inc. /
		SST, /*< Silicon Storage Technology, Inc. /
		ZMOS, /*< ZMOS Technology, Inc. /
		INTEL, /*< Intel Corporation. /
		NUMONYX = 254, /*< Numonyx, acquired by Micron Technology, Inc. /
		MICRON = 255, /*< Micron Technology, Inc. /
		DDR_MANUFACTURES_MAX = 0x7FFFFFFF /*< Forces the enumerator to 32 bits. /
		} DDR_MANUFACTURES;

		void smem_get_ddr_manufacturer_id(unsigned char *buf)
		{
		unsigned int *manufacturer_id;
		unsigned int manufacturer_id_len = sizeof(manufacturer_id);

		manufacturer_id = smem_get_entry(SMEM_ID_VENDOR2, &manufacturer_id_len, 0,
		SMEM_ANY_HOST_FLAG);
		if (manufacturer_id == NULL)
		{
		pr_err("[B]%s(%d): Failed to read SMEM_ID_VENDOR2\n", __func__, __LINE__);
		}

		switch(*manufacturer_id)
		{
		case SAMSUNG:
		snprintf((char *)buf, 64, "SAMSUNG");
		break;
		case ELPIDA:
		snprintf((char *)buf, 64, "ELPIDA");
		break;
		case HYNIX:
		snprintf((char *)buf, 64, "HYNIX");
		break;
		case MICRON:
		snprintf((char *)buf, 64, "MICRON");
		break;
		default:
		snprintf((char *)buf, 64, "OTHERS");
		break;
		}

		pr_err("[B]%s(%d): manufacturer_id=%d, %s\n", __func__, __LINE__, *manufacturer_id, buf);
		}

		int __init socinfo_init(void)
		{
		static bool socinfo_init_done;
		@@ -2036,6 +2094,10 @@ int __init socinfo_init(void)
		arch_read_hardware_id = msm_read_hardware_id;
		socinfo_init_done = true;

		memset(ddr_vendor, 0, sizeof(ddr_vendor));
		smem_get_ddr_manufacturer_id((unsigned char *) ddr_vendor);
		pr_err("[B]%s(%d): ddr_vendor=%s\n", __func__, __LINE__, ddr_vendor);

		return 0;
		}
		subsys_initcall(socinfo_init);

kernel/sysctl.c

100644 → 100755

+40 −0

Original line number	Diff line number	Diff line
		@@ -66,6 +66,7 @@
		#include <linux/kexec.h>
		#include <linux/bpf.h>
		#include <linux/mount.h>
		#include <soc/qcom/smem.h>

		#include <asm/uaccess.h>
		#include <asm/processor.h>
		@@ -230,6 +231,8 @@ static struct ctl_table vm_table[];
		static struct ctl_table fs_table[];
		static struct ctl_table debug_table[];
		static struct ctl_table dev_table[];
		static struct ctl_table qpnp_power_on_table[];
		static struct ctl_table ddr_table[];
		extern struct ctl_table random_table[];
		#ifdef CONFIG_EPOLL
		extern struct ctl_table epoll_table[];
		@@ -267,6 +270,11 @@ static struct ctl_table sysctl_base_table[] = {
		.mode = 0555,
		.child = dev_table,
		},
		{
		.procname = "qpnp-power-on",
		.mode = 0555,
		.child = qpnp_power_on_table,
		},
		{ }
		};

		@@ -2089,6 +2097,38 @@ static struct ctl_table debug_table[] = {
		};

		static struct ctl_table dev_table[] = {
		{
		.procname = "ddr",
		.mode = 0555,
		.child = ddr_table,
		},
		{ }
		};
		static struct ctl_table qpnp_power_on_table[] = {
		{
		.procname = "pon_reason",
		.data = &qpnp_pon_reason_extern,
		.maxlen = sizeof(int),
		.mode = 0444,
		.proc_handler = proc_dointvec,
		},
		{
		.procname = "poff_reason",
		.data = &qpnp_poff_reason_extern,
		.maxlen = sizeof(int),
		.mode = 0444,
		.proc_handler = proc_dointvec,
		},
		{ }
		};
		static struct ctl_table ddr_table[] = {
		{
		.procname = "vendor",
		.data = &ddr_vendor,
		.maxlen = 32,
		.mode = 0444,
		.proc_handler = proc_dostring,
		},
		{ }
		};