x86/platform/intel/pmc_atom: Print index of device in loop

The register mapping may change from one platform to another.
Thus, indices might be not the same on different platforms. The
patch makes the code to print the device index dynamically at
run time.

The patch also changes the for loop to iterate over the map
until a terminator is found.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Aubrey Li <aubrey.li@linux.intel.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Kumar P Mahesh <mahesh.kumar.p@intel.com>
Link: http://lkml.kernel.org/r/1436192944-56496-3-git-send-email-andriy.shevchenko@linux.intel.comSigned-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/kernel/pmc_atom.c

@@ -43,63 +43,65 @@ struct pmc_bit_map {
 };
 
 static const struct pmc_bit_map dev_map[] = {
-	{"0  - LPSS1_F0_DMA",		BIT_LPSS1_F0_DMA},
-	{"1  - LPSS1_F1_PWM1",		BIT_LPSS1_F1_PWM1},
-	{"2  - LPSS1_F2_PWM2",		BIT_LPSS1_F2_PWM2},
-	{"3  - LPSS1_F3_HSUART1",	BIT_LPSS1_F3_HSUART1},
-	{"4  - LPSS1_F4_HSUART2",	BIT_LPSS1_F4_HSUART2},
-	{"5  - LPSS1_F5_SPI",		BIT_LPSS1_F5_SPI},
-	{"6  - LPSS1_F6_Reserved",	BIT_LPSS1_F6_XXX},
-	{"7  - LPSS1_F7_Reserved",	BIT_LPSS1_F7_XXX},
-	{"8  - SCC_EMMC",		BIT_SCC_EMMC},
-	{"9  - SCC_SDIO",		BIT_SCC_SDIO},
-	{"10 - SCC_SDCARD",		BIT_SCC_SDCARD},
-	{"11 - SCC_MIPI",		BIT_SCC_MIPI},
-	{"12 - HDA",			BIT_HDA},
-	{"13 - LPE",			BIT_LPE},
-	{"14 - OTG",			BIT_OTG},
-	{"15 - USH",			BIT_USH},
-	{"16 - GBE",			BIT_GBE},
-	{"17 - SATA",			BIT_SATA},
-	{"18 - USB_EHCI",		BIT_USB_EHCI},
-	{"19 - SEC",			BIT_SEC},
-	{"20 - PCIE_PORT0",		BIT_PCIE_PORT0},
-	{"21 - PCIE_PORT1",		BIT_PCIE_PORT1},
-	{"22 - PCIE_PORT2",		BIT_PCIE_PORT2},
-	{"23 - PCIE_PORT3",		BIT_PCIE_PORT3},
-	{"24 - LPSS2_F0_DMA",		BIT_LPSS2_F0_DMA},
-	{"25 - LPSS2_F1_I2C1",		BIT_LPSS2_F1_I2C1},
-	{"26 - LPSS2_F2_I2C2",		BIT_LPSS2_F2_I2C2},
-	{"27 - LPSS2_F3_I2C3",		BIT_LPSS2_F3_I2C3},
-	{"28 - LPSS2_F3_I2C4",		BIT_LPSS2_F4_I2C4},
-	{"29 - LPSS2_F5_I2C5",		BIT_LPSS2_F5_I2C5},
-	{"30 - LPSS2_F6_I2C6",		BIT_LPSS2_F6_I2C6},
-	{"31 - LPSS2_F7_I2C7",		BIT_LPSS2_F7_I2C7},
-	{"32 - SMB",			BIT_SMB},
-	{"33 - OTG_SS_PHY",		BIT_OTG_SS_PHY},
-	{"34 - USH_SS_PHY",		BIT_USH_SS_PHY},
-	{"35 - DFX",			BIT_DFX},
+	{"LPSS1_F0_DMA",	BIT_LPSS1_F0_DMA},
+	{"LPSS1_F1_PWM1",	BIT_LPSS1_F1_PWM1},
+	{"LPSS1_F2_PWM2",	BIT_LPSS1_F2_PWM2},
+	{"LPSS1_F3_HSUART1",	BIT_LPSS1_F3_HSUART1},
+	{"LPSS1_F4_HSUART2",	BIT_LPSS1_F4_HSUART2},
+	{"LPSS1_F5_SPI",	BIT_LPSS1_F5_SPI},
+	{"LPSS1_F6_Reserved",	BIT_LPSS1_F6_XXX},
+	{"LPSS1_F7_Reserved",	BIT_LPSS1_F7_XXX},
+	{"SCC_EMMC",		BIT_SCC_EMMC},
+	{"SCC_SDIO",		BIT_SCC_SDIO},
+	{"SCC_SDCARD",		BIT_SCC_SDCARD},
+	{"SCC_MIPI",		BIT_SCC_MIPI},
+	{"HDA",			BIT_HDA},
+	{"LPE",			BIT_LPE},
+	{"OTG",			BIT_OTG},
+	{"USH",			BIT_USH},
+	{"GBE",			BIT_GBE},
+	{"SATA",		BIT_SATA},
+	{"USB_EHCI",		BIT_USB_EHCI},
+	{"SEC",			BIT_SEC},
+	{"PCIE_PORT0",		BIT_PCIE_PORT0},
+	{"PCIE_PORT1",		BIT_PCIE_PORT1},
+	{"PCIE_PORT2",		BIT_PCIE_PORT2},
+	{"PCIE_PORT3",		BIT_PCIE_PORT3},
+	{"LPSS2_F0_DMA",	BIT_LPSS2_F0_DMA},
+	{"LPSS2_F1_I2C1",	BIT_LPSS2_F1_I2C1},
+	{"LPSS2_F2_I2C2",	BIT_LPSS2_F2_I2C2},
+	{"LPSS2_F3_I2C3",	BIT_LPSS2_F3_I2C3},
+	{"LPSS2_F3_I2C4",	BIT_LPSS2_F4_I2C4},
+	{"LPSS2_F5_I2C5",	BIT_LPSS2_F5_I2C5},
+	{"LPSS2_F6_I2C6",	BIT_LPSS2_F6_I2C6},
+	{"LPSS2_F7_I2C7",	BIT_LPSS2_F7_I2C7},
+	{"SMB",			BIT_SMB},
+	{"OTG_SS_PHY",		BIT_OTG_SS_PHY},
+	{"USH_SS_PHY",		BIT_USH_SS_PHY},
+	{"DFX",			BIT_DFX},
+	{},
 };
 
 static const struct pmc_bit_map pss_map[] = {
-	{"0  - GBE",			PMC_PSS_BIT_GBE},
-	{"1  - SATA",			PMC_PSS_BIT_SATA},
-	{"2  - HDA",			PMC_PSS_BIT_HDA},
-	{"3  - SEC",			PMC_PSS_BIT_SEC},
-	{"4  - PCIE",			PMC_PSS_BIT_PCIE},
-	{"5  - LPSS",			PMC_PSS_BIT_LPSS},
-	{"6  - LPE",			PMC_PSS_BIT_LPE},
-	{"7  - DFX",			PMC_PSS_BIT_DFX},
-	{"8  - USH_CTRL",		PMC_PSS_BIT_USH_CTRL},
-	{"9  - USH_SUS",		PMC_PSS_BIT_USH_SUS},
-	{"10 - USH_VCCS",		PMC_PSS_BIT_USH_VCCS},
-	{"11 - USH_VCCA",		PMC_PSS_BIT_USH_VCCA},
-	{"12 - OTG_CTRL",		PMC_PSS_BIT_OTG_CTRL},
-	{"13 - OTG_VCCS",		PMC_PSS_BIT_OTG_VCCS},
-	{"14 - OTG_VCCA_CLK",		PMC_PSS_BIT_OTG_VCCA_CLK},
-	{"15 - OTG_VCCA",		PMC_PSS_BIT_OTG_VCCA},
-	{"16 - USB",			PMC_PSS_BIT_USB},
-	{"17 - USB_SUS",		PMC_PSS_BIT_USB_SUS},
+	{"GBE",			PMC_PSS_BIT_GBE},
+	{"SATA",		PMC_PSS_BIT_SATA},
+	{"HDA",			PMC_PSS_BIT_HDA},
+	{"SEC",			PMC_PSS_BIT_SEC},
+	{"PCIE",		PMC_PSS_BIT_PCIE},
+	{"LPSS",		PMC_PSS_BIT_LPSS},
+	{"LPE",			PMC_PSS_BIT_LPE},
+	{"DFX",			PMC_PSS_BIT_DFX},
+	{"USH_CTRL",		PMC_PSS_BIT_USH_CTRL},
+	{"USH_SUS",		PMC_PSS_BIT_USH_SUS},
+	{"USH_VCCS",		PMC_PSS_BIT_USH_VCCS},
+	{"USH_VCCA",		PMC_PSS_BIT_USH_VCCA},
+	{"OTG_CTRL",		PMC_PSS_BIT_OTG_CTRL},
+	{"OTG_VCCS",		PMC_PSS_BIT_OTG_VCCS},
+	{"OTG_VCCA_CLK",	PMC_PSS_BIT_OTG_VCCA_CLK},
+	{"OTG_VCCA",		PMC_PSS_BIT_OTG_VCCA},
+	{"USB",			PMC_PSS_BIT_USB},
+	{"USB_SUS",		PMC_PSS_BIT_USB_SUS},
+	{},
 };
 
 static inline u32 pmc_reg_read(struct pmc_dev *pmc, int reg_offset)
@@ -172,16 +174,14 @@ static int pmc_dev_state_show(struct seq_file *s, void *unused)
 	struct pmc_dev *pmc = s->private;
 	u32 func_dis, func_dis_2, func_dis_index;
 	u32 d3_sts_0, d3_sts_1, d3_sts_index;
-	int dev_num, dev_index, reg_index;
+	int dev_index, reg_index;
 
 	func_dis = pmc_reg_read(pmc, PMC_FUNC_DIS);
 	func_dis_2 = pmc_reg_read(pmc, PMC_FUNC_DIS_2);
 	d3_sts_0 = pmc_reg_read(pmc, PMC_D3_STS_0);
 	d3_sts_1 = pmc_reg_read(pmc, PMC_D3_STS_1);
 
-	dev_num = ARRAY_SIZE(dev_map);
-
-	for (dev_index = 0; dev_index < dev_num; dev_index++) {
+	for (dev_index = 0; dev_map[dev_index].name; dev_index++) {
 		reg_index = dev_index / PMC_REG_BIT_WIDTH;
 		if (reg_index) {
 			func_dis_index = func_dis_2;
@@ -191,8 +191,8 @@ static int pmc_dev_state_show(struct seq_file *s, void *unused)
 			d3_sts_index = d3_sts_0;
 		}
 
-		seq_printf(s, "Dev: %-32s\tState: %s [%s]\n",
-			dev_map[dev_index].name,
+		seq_printf(s, "Dev: %-2d - %-32s\tState: %s [%s]\n",
+			dev_index, dev_map[dev_index].name,
 			dev_map[dev_index].bit_mask & func_dis_index ?
 			"Disabled" : "Enabled ",
 			dev_map[dev_index].bit_mask & d3_sts_index ?
@@ -219,9 +219,9 @@ static int pmc_pss_state_show(struct seq_file *s, void *unused)
 	u32 pss = pmc_reg_read(pmc, PMC_PSS);
 	int pss_index;
 
-	for (pss_index = 0; pss_index < ARRAY_SIZE(pss_map); pss_index++) {
-		seq_printf(s, "Island: %-32s\tState: %s\n",
-			pss_map[pss_index].name,
+	for (pss_index = 0; pss_map[pss_index].name; pss_index++) {
+		seq_printf(s, "Island: %-2d - %-32s\tState: %s\n",
+			pss_index, pss_map[pss_index].name,
 			pss_map[pss_index].bit_mask & pss ? "Off" : "On");
 	}
 	return 0;