drm/i915: Rename struct i915_power_well field data to id

Calling it data seems to imply arbitrary data can be associated with the
power well. However, that field is used for look ups and expected to be
unique, so rename it.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/f3916c3c5bfa793b0fc870fd44007a3ff425194d.1475770848.git-series.ander.conselvan.de.oliveira@intel.com

drivers/gpu/drm/i915/i915_drv.h

@@ -1322,7 +1322,8 @@ struct i915_power_well {
 	/* cached hw enabled state */
 	bool hw_enabled;
 	unsigned long domains;
-	unsigned long data;
+	/* unique identifier for this power well */
+	unsigned long id;
 	const struct i915_power_well_ops *ops;
 };
 

drivers/gpu/drm/i915/intel_runtime_pm.c

@@ -330,7 +330,7 @@ static void skl_power_well_post_enable(struct drm_i915_private *dev_priv,
 	 * sure vgacon can keep working normally without triggering interrupts
 	 * and error messages.
 	 */
-	if (power_well->data == SKL_DISP_PW_2) {
+	if (power_well->id == SKL_DISP_PW_2) {
 		vga_get_uninterruptible(pdev, VGA_RSRC_LEGACY_IO);
 		outb(inb(VGA_MSR_READ), VGA_MSR_WRITE);
 		vga_put(pdev, VGA_RSRC_LEGACY_IO);
@@ -343,7 +343,7 @@ static void skl_power_well_post_enable(struct drm_i915_private *dev_priv,
 static void skl_power_well_pre_disable(struct drm_i915_private *dev_priv,
 				       struct i915_power_well *power_well)
 {
-	if (power_well->data == SKL_DISP_PW_2)
+	if (power_well->id == SKL_DISP_PW_2)
 		gen8_irq_power_well_pre_disable(dev_priv,
 						1 << PIPE_C | 1 << PIPE_B);
 }
@@ -658,7 +658,7 @@ static void
 gen9_sanitize_power_well_requests(struct drm_i915_private *dev_priv,
 				  struct i915_power_well *power_well)
 {
-	enum skl_disp_power_wells power_well_id = power_well->data;
+	enum skl_disp_power_wells power_well_id = power_well->id;
 	u32 val;
 	u32 mask;
 
@@ -703,7 +703,7 @@ static void skl_set_power_well(struct drm_i915_private *dev_priv,
 	tmp = I915_READ(HSW_PWR_WELL_DRIVER);
 	fuse_status = I915_READ(SKL_FUSE_STATUS);
 
-	switch (power_well->data) {
+	switch (power_well->id) {
 	case SKL_DISP_PW_1:
 		if (intel_wait_for_register(dev_priv,
 					    SKL_FUSE_STATUS,
@@ -727,13 +727,13 @@ static void skl_set_power_well(struct drm_i915_private *dev_priv,
 	case SKL_DISP_PW_MISC_IO:
 		break;
 	default:
-		WARN(1, "Unknown power well %lu\n", power_well->data);
+		WARN(1, "Unknown power well %lu\n", power_well->id);
 		return;
 	}
 
-	req_mask = SKL_POWER_WELL_REQ(power_well->data);
+	req_mask = SKL_POWER_WELL_REQ(power_well->id);
 	enable_requested = tmp & req_mask;
-	state_mask = SKL_POWER_WELL_STATE(power_well->data);
+	state_mask = SKL_POWER_WELL_STATE(power_well->id);
 	is_enabled = tmp & state_mask;
 
 	if (!enable && enable_requested)
@@ -769,14 +769,14 @@ static void skl_set_power_well(struct drm_i915_private *dev_priv,
 			  power_well->name, enable ? "enable" : "disable");
 
 	if (check_fuse_status) {
-		if (power_well->data == SKL_DISP_PW_1) {
+		if (power_well->id == SKL_DISP_PW_1) {
 			if (intel_wait_for_register(dev_priv,
 						    SKL_FUSE_STATUS,
 						    SKL_FUSE_PG1_DIST_STATUS,
 						    SKL_FUSE_PG1_DIST_STATUS,
 						    1))
 				DRM_ERROR("PG1 distributing status timeout\n");
-		} else if (power_well->data == SKL_DISP_PW_2) {
+		} else if (power_well->id == SKL_DISP_PW_2) {
 			if (intel_wait_for_register(dev_priv,
 						    SKL_FUSE_STATUS,
 						    SKL_FUSE_PG2_DIST_STATUS,
@@ -818,8 +818,8 @@ static void hsw_power_well_disable(struct drm_i915_private *dev_priv,
 static bool skl_power_well_enabled(struct drm_i915_private *dev_priv,
 					struct i915_power_well *power_well)
 {
-	uint32_t mask = SKL_POWER_WELL_REQ(power_well->data) |
-		SKL_POWER_WELL_STATE(power_well->data);
+	uint32_t mask = SKL_POWER_WELL_REQ(power_well->id) |
+		SKL_POWER_WELL_STATE(power_well->id);
 
 	return (I915_READ(HSW_PWR_WELL_DRIVER) & mask) == mask;
 }
@@ -847,7 +847,7 @@ static void skl_power_well_disable(struct drm_i915_private *dev_priv,
 
 static enum dpio_phy bxt_power_well_to_phy(struct i915_power_well *power_well)
 {
-	enum skl_disp_power_wells power_well_id = power_well->data;
+	enum skl_disp_power_wells power_well_id = power_well->id;
 
 	return power_well_id == BXT_DPIO_CMN_A ? DPIO_PHY1 : DPIO_PHY0;
 }
@@ -855,7 +855,7 @@ static enum dpio_phy bxt_power_well_to_phy(struct i915_power_well *power_well)
 static void bxt_dpio_cmn_power_well_enable(struct drm_i915_private *dev_priv,
 					   struct i915_power_well *power_well)
 {
-	enum skl_disp_power_wells power_well_id = power_well->data;
+	enum skl_disp_power_wells power_well_id = power_well->id;
 	struct i915_power_well *cmn_a_well = NULL;
 
 	if (power_well_id == BXT_DPIO_CMN_BC) {
@@ -975,7 +975,7 @@ static bool i9xx_always_on_power_well_enabled(struct drm_i915_private *dev_priv,
 static void vlv_set_power_well(struct drm_i915_private *dev_priv,
 			       struct i915_power_well *power_well, bool enable)
 {
-	enum punit_power_well power_well_id = power_well->data;
+	enum punit_power_well power_well_id = power_well->id;
 	u32 mask;
 	u32 state;
 	u32 ctrl;
@@ -1029,7 +1029,7 @@ static void vlv_power_well_disable(struct drm_i915_private *dev_priv,
 static bool vlv_power_well_enabled(struct drm_i915_private *dev_priv,
 				   struct i915_power_well *power_well)
 {
-	int power_well_id = power_well->data;
+	int power_well_id = power_well->id;
 	bool enabled = false;
 	u32 mask;
 	u32 state;
@@ -1144,7 +1144,7 @@ static void vlv_display_power_well_deinit(struct drm_i915_private *dev_priv)
 static void vlv_display_power_well_enable(struct drm_i915_private *dev_priv,
 					  struct i915_power_well *power_well)
 {
-	WARN_ON_ONCE(power_well->data != PUNIT_POWER_WELL_DISP2D);
+	WARN_ON_ONCE(power_well->id != PUNIT_POWER_WELL_DISP2D);
 
 	vlv_set_power_well(dev_priv, power_well, true);
 
@@ -1154,7 +1154,7 @@ static void vlv_display_power_well_enable(struct drm_i915_private *dev_priv,
 static void vlv_display_power_well_disable(struct drm_i915_private *dev_priv,
 					   struct i915_power_well *power_well)
 {
-	WARN_ON_ONCE(power_well->data != PUNIT_POWER_WELL_DISP2D);
+	WARN_ON_ONCE(power_well->id != PUNIT_POWER_WELL_DISP2D);
 
 	vlv_display_power_well_deinit(dev_priv);
 
@@ -1164,7 +1164,7 @@ static void vlv_display_power_well_disable(struct drm_i915_private *dev_priv,
 static void vlv_dpio_cmn_power_well_enable(struct drm_i915_private *dev_priv,
 					   struct i915_power_well *power_well)
 {
-	WARN_ON_ONCE(power_well->data != PUNIT_POWER_WELL_DPIO_CMN_BC);
+	WARN_ON_ONCE(power_well->id != PUNIT_POWER_WELL_DPIO_CMN_BC);
 
 	/* since ref/cri clock was enabled */
 	udelay(1); /* >10ns for cmnreset, >0ns for sidereset */
@@ -1190,7 +1190,7 @@ static void vlv_dpio_cmn_power_well_disable(struct drm_i915_private *dev_priv,
 {
 	enum pipe pipe;
 
-	WARN_ON_ONCE(power_well->data != PUNIT_POWER_WELL_DPIO_CMN_BC);
+	WARN_ON_ONCE(power_well->id != PUNIT_POWER_WELL_DPIO_CMN_BC);
 
 	for_each_pipe(dev_priv, pipe)
 		assert_pll_disabled(dev_priv, pipe);
@@ -1213,7 +1213,7 @@ static struct i915_power_well *lookup_power_well(struct drm_i915_private *dev_pr
 		struct i915_power_well *power_well;
 
 		power_well = &power_domains->power_wells[i];
-		if (power_well->data == power_well_id)
+		if (power_well->id == power_well_id)
 			return power_well;
 	}
 
@@ -1337,10 +1337,10 @@ static void chv_dpio_cmn_power_well_enable(struct drm_i915_private *dev_priv,
 	enum pipe pipe;
 	uint32_t tmp;
 
-	WARN_ON_ONCE(power_well->data != PUNIT_POWER_WELL_DPIO_CMN_BC &&
-		     power_well->data != PUNIT_POWER_WELL_DPIO_CMN_D);
+	WARN_ON_ONCE(power_well->id != PUNIT_POWER_WELL_DPIO_CMN_BC &&
+		     power_well->id != PUNIT_POWER_WELL_DPIO_CMN_D);
 
-	if (power_well->data == PUNIT_POWER_WELL_DPIO_CMN_BC) {
+	if (power_well->id == PUNIT_POWER_WELL_DPIO_CMN_BC) {
 		pipe = PIPE_A;
 		phy = DPIO_PHY0;
 	} else {
@@ -1368,7 +1368,7 @@ static void chv_dpio_cmn_power_well_enable(struct drm_i915_private *dev_priv,
 		DPIO_SUS_CLK_CONFIG_GATE_CLKREQ;
 	vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW28, tmp);
 
-	if (power_well->data == PUNIT_POWER_WELL_DPIO_CMN_BC) {
+	if (power_well->id == PUNIT_POWER_WELL_DPIO_CMN_BC) {
 		tmp = vlv_dpio_read(dev_priv, pipe, _CHV_CMN_DW6_CH1);
 		tmp |= DPIO_DYNPWRDOWNEN_CH1;
 		vlv_dpio_write(dev_priv, pipe, _CHV_CMN_DW6_CH1, tmp);
@@ -1399,10 +1399,10 @@ static void chv_dpio_cmn_power_well_disable(struct drm_i915_private *dev_priv,
 {
 	enum dpio_phy phy;
 
-	WARN_ON_ONCE(power_well->data != PUNIT_POWER_WELL_DPIO_CMN_BC &&
-		     power_well->data != PUNIT_POWER_WELL_DPIO_CMN_D);
+	WARN_ON_ONCE(power_well->id != PUNIT_POWER_WELL_DPIO_CMN_BC &&
+		     power_well->id != PUNIT_POWER_WELL_DPIO_CMN_D);
 
-	if (power_well->data == PUNIT_POWER_WELL_DPIO_CMN_BC) {
+	if (power_well->id == PUNIT_POWER_WELL_DPIO_CMN_BC) {
 		phy = DPIO_PHY0;
 		assert_pll_disabled(dev_priv, PIPE_A);
 		assert_pll_disabled(dev_priv, PIPE_B);
@@ -1551,7 +1551,7 @@ void chv_phy_powergate_lanes(struct intel_encoder *encoder,
 static bool chv_pipe_power_well_enabled(struct drm_i915_private *dev_priv,
 					struct i915_power_well *power_well)
 {
-	enum pipe pipe = power_well->data;
+	enum pipe pipe = power_well->id;
 	bool enabled;
 	u32 state, ctrl;
 
@@ -1581,7 +1581,7 @@ static void chv_set_pipe_power_well(struct drm_i915_private *dev_priv,
 				    struct i915_power_well *power_well,
 				    bool enable)
 {
-	enum pipe pipe = power_well->data;
+	enum pipe pipe = power_well->id;
 	u32 state;
 	u32 ctrl;
 
@@ -1614,7 +1614,7 @@ out:
 static void chv_pipe_power_well_sync_hw(struct drm_i915_private *dev_priv,
 					struct i915_power_well *power_well)
 {
-	WARN_ON_ONCE(power_well->data != PIPE_A);
+	WARN_ON_ONCE(power_well->id != PIPE_A);
 
 	chv_set_pipe_power_well(dev_priv, power_well, power_well->count > 0);
 }
@@ -1622,7 +1622,7 @@ static void chv_pipe_power_well_sync_hw(struct drm_i915_private *dev_priv,
 static void chv_pipe_power_well_enable(struct drm_i915_private *dev_priv,
 				       struct i915_power_well *power_well)
 {
-	WARN_ON_ONCE(power_well->data != PIPE_A);
+	WARN_ON_ONCE(power_well->id != PIPE_A);
 
 	chv_set_pipe_power_well(dev_priv, power_well, true);
 
@@ -1632,7 +1632,7 @@ static void chv_pipe_power_well_enable(struct drm_i915_private *dev_priv,
 static void chv_pipe_power_well_disable(struct drm_i915_private *dev_priv,
 					struct i915_power_well *power_well)
 {
-	WARN_ON_ONCE(power_well->data != PIPE_A);
+	WARN_ON_ONCE(power_well->id != PIPE_A);
 
 	vlv_display_power_well_deinit(dev_priv);
 
@@ -1976,12 +1976,12 @@ static struct i915_power_well vlv_power_wells[] = {
 		.always_on = 1,
 		.domains = POWER_DOMAIN_MASK,
 		.ops = &i9xx_always_on_power_well_ops,
-		.data = PUNIT_POWER_WELL_ALWAYS_ON,
+		.id = PUNIT_POWER_WELL_ALWAYS_ON,
 	},
 	{
 		.name = "display",
 		.domains = VLV_DISPLAY_POWER_DOMAINS,
-		.data = PUNIT_POWER_WELL_DISP2D,
+		.id = PUNIT_POWER_WELL_DISP2D,
 		.ops = &vlv_display_power_well_ops,
 	},
 	{
@@ -1991,7 +1991,7 @@ static struct i915_power_well vlv_power_wells[] = {
 			   VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
 			   VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
 		.ops = &vlv_dpio_power_well_ops,
-		.data = PUNIT_POWER_WELL_DPIO_TX_B_LANES_01,
+		.id = PUNIT_POWER_WELL_DPIO_TX_B_LANES_01,
 	},
 	{
 		.name = "dpio-tx-b-23",
@@ -2000,7 +2000,7 @@ static struct i915_power_well vlv_power_wells[] = {
 			   VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
 			   VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
 		.ops = &vlv_dpio_power_well_ops,
-		.data = PUNIT_POWER_WELL_DPIO_TX_B_LANES_23,
+		.id = PUNIT_POWER_WELL_DPIO_TX_B_LANES_23,
 	},
 	{
 		.name = "dpio-tx-c-01",
@@ -2009,7 +2009,7 @@ static struct i915_power_well vlv_power_wells[] = {
 			   VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
 			   VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
 		.ops = &vlv_dpio_power_well_ops,
-		.data = PUNIT_POWER_WELL_DPIO_TX_C_LANES_01,
+		.id = PUNIT_POWER_WELL_DPIO_TX_C_LANES_01,
 	},
 	{
 		.name = "dpio-tx-c-23",
@@ -2018,12 +2018,12 @@ static struct i915_power_well vlv_power_wells[] = {
 			   VLV_DPIO_TX_C_LANES_01_POWER_DOMAINS |
 			   VLV_DPIO_TX_C_LANES_23_POWER_DOMAINS,
 		.ops = &vlv_dpio_power_well_ops,
-		.data = PUNIT_POWER_WELL_DPIO_TX_C_LANES_23,
+		.id = PUNIT_POWER_WELL_DPIO_TX_C_LANES_23,
 	},
 	{
 		.name = "dpio-common",
 		.domains = VLV_DPIO_CMN_BC_POWER_DOMAINS,
-		.data = PUNIT_POWER_WELL_DPIO_CMN_BC,
+		.id = PUNIT_POWER_WELL_DPIO_CMN_BC,
 		.ops = &vlv_dpio_cmn_power_well_ops,
 	},
 };
@@ -2043,19 +2043,19 @@ static struct i915_power_well chv_power_wells[] = {
 		 * required for any pipe to work.
 		 */
 		.domains = CHV_DISPLAY_POWER_DOMAINS,
-		.data = PIPE_A,
+		.id = PIPE_A,
 		.ops = &chv_pipe_power_well_ops,
 	},
 	{
 		.name = "dpio-common-bc",
 		.domains = CHV_DPIO_CMN_BC_POWER_DOMAINS,
-		.data = PUNIT_POWER_WELL_DPIO_CMN_BC,
+		.id = PUNIT_POWER_WELL_DPIO_CMN_BC,
 		.ops = &chv_dpio_cmn_power_well_ops,
 	},
 	{
 		.name = "dpio-common-d",
 		.domains = CHV_DPIO_CMN_D_POWER_DOMAINS,
-		.data = PUNIT_POWER_WELL_DPIO_CMN_D,
+		.id = PUNIT_POWER_WELL_DPIO_CMN_D,
 		.ops = &chv_dpio_cmn_power_well_ops,
 	},
 };
@@ -2078,57 +2078,57 @@ static struct i915_power_well skl_power_wells[] = {
 		.always_on = 1,
 		.domains = POWER_DOMAIN_MASK,
 		.ops = &i9xx_always_on_power_well_ops,
-		.data = SKL_DISP_PW_ALWAYS_ON,
+		.id = SKL_DISP_PW_ALWAYS_ON,
 	},
 	{
 		.name = "power well 1",
 		/* Handled by the DMC firmware */
 		.domains = 0,
 		.ops = &skl_power_well_ops,
-		.data = SKL_DISP_PW_1,
+		.id = SKL_DISP_PW_1,
 	},
 	{
 		.name = "MISC IO power well",
 		/* Handled by the DMC firmware */
 		.domains = 0,
 		.ops = &skl_power_well_ops,
-		.data = SKL_DISP_PW_MISC_IO,
+		.id = SKL_DISP_PW_MISC_IO,
 	},
 	{
 		.name = "DC off",
 		.domains = SKL_DISPLAY_DC_OFF_POWER_DOMAINS,
 		.ops = &gen9_dc_off_power_well_ops,
-		.data = SKL_DISP_PW_DC_OFF,
+		.id = SKL_DISP_PW_DC_OFF,
 	},
 	{
 		.name = "power well 2",
 		.domains = SKL_DISPLAY_POWERWELL_2_POWER_DOMAINS,
 		.ops = &skl_power_well_ops,
-		.data = SKL_DISP_PW_2,
+		.id = SKL_DISP_PW_2,
 	},
 	{
 		.name = "DDI A/E power well",
 		.domains = SKL_DISPLAY_DDI_A_E_POWER_DOMAINS,
 		.ops = &skl_power_well_ops,
-		.data = SKL_DISP_PW_DDI_A_E,
+		.id = SKL_DISP_PW_DDI_A_E,
 	},
 	{
 		.name = "DDI B power well",
 		.domains = SKL_DISPLAY_DDI_B_POWER_DOMAINS,
 		.ops = &skl_power_well_ops,
-		.data = SKL_DISP_PW_DDI_B,
+		.id = SKL_DISP_PW_DDI_B,
 	},
 	{
 		.name = "DDI C power well",
 		.domains = SKL_DISPLAY_DDI_C_POWER_DOMAINS,
 		.ops = &skl_power_well_ops,
-		.data = SKL_DISP_PW_DDI_C,
+		.id = SKL_DISP_PW_DDI_C,
 	},
 	{
 		.name = "DDI D power well",
 		.domains = SKL_DISPLAY_DDI_D_POWER_DOMAINS,
 		.ops = &skl_power_well_ops,
-		.data = SKL_DISP_PW_DDI_D,
+		.id = SKL_DISP_PW_DDI_D,
 	},
 };
 
@@ -2143,31 +2143,31 @@ static struct i915_power_well bxt_power_wells[] = {
 		.name = "power well 1",
 		.domains = 0,
 		.ops = &skl_power_well_ops,
-		.data = SKL_DISP_PW_1,
+		.id = SKL_DISP_PW_1,
 	},
 	{
 		.name = "DC off",
 		.domains = BXT_DISPLAY_DC_OFF_POWER_DOMAINS,
 		.ops = &gen9_dc_off_power_well_ops,
-		.data = SKL_DISP_PW_DC_OFF,
+		.id = SKL_DISP_PW_DC_OFF,
 	},
 	{
 		.name = "power well 2",
 		.domains = BXT_DISPLAY_POWERWELL_2_POWER_DOMAINS,
 		.ops = &skl_power_well_ops,
-		.data = SKL_DISP_PW_2,
+		.id = SKL_DISP_PW_2,
 	},
 	{
 		.name = "dpio-common-a",
 		.domains = BXT_DPIO_CMN_A_POWER_DOMAINS,
 		.ops = &bxt_dpio_cmn_power_well_ops,
-		.data = BXT_DPIO_CMN_A,
+		.id = BXT_DPIO_CMN_A,
 	},
 	{
 		.name = "dpio-common-bc",
 		.domains = BXT_DPIO_CMN_BC_POWER_DOMAINS,
 		.ops = &bxt_dpio_cmn_power_well_ops,
-		.data = BXT_DPIO_CMN_BC,
+		.id = BXT_DPIO_CMN_BC,
 	},
 };