modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/gpu/drm/gma500/mdfld_dsi_output.c
..
..
@@ -25,15 +25,18 @@
25
25
  * Jackie Li<yaodong.li@intel.com>
26
26
  */
27
27
 
28
-#include <linux/module.h>
29
-
30
-#include "mdfld_dsi_output.h"
31
-#include "mdfld_dsi_dpi.h"
32
-#include "mdfld_output.h"
33
-#include "mdfld_dsi_pkg_sender.h"
34
-#include "tc35876x-dsi-lvds.h"
28
+#include <linux/delay.h>
29
+#include <linux/moduleparam.h>
35
30
 #include <linux/pm_runtime.h>
31
+#include <linux/gpio/consumer.h>
32
+
36
33
 #include <asm/intel_scu_ipc.h>
34
+
35
+#include "mdfld_dsi_dpi.h"
36
+#include "mdfld_dsi_output.h"
37
+#include "mdfld_dsi_pkg_sender.h"
38
+#include "mdfld_output.h"
39
+#include "tc35876x-dsi-lvds.h"
37
40
 
38
41
 /* get the LABC from command line. */
39
42
 static int LABC_control = 1;
..
..
@@ -364,7 +367,7 @@
364
367
 	/**
365
368
 	 * FIXME: current DC has no fitting unit, reject any mode setting
366
369
 	 * request
367
-	 * Will figure out a way to do up-scaling(pannel fitting) later.
370
+	 * Will figure out a way to do up-scaling(panel fitting) later.
368
371
 	 **/
369
372
 	if (fixed_mode) {
370
373
 		if (mode->hdisplay != fixed_mode->hdisplay)
..
..
@@ -430,42 +433,42 @@
430
433
 	return 0;
431
434
 }
432
435
 
433
-int mdfld_dsi_panel_reset(int pipe)
436
+int mdfld_dsi_panel_reset(struct drm_device *ddev, int pipe)
434
437
 {
435
-	unsigned gpio;
436
-	int ret = 0;
438
+	struct device *dev = ddev->dev;
439
+	struct gpio_desc *gpiod;
437
440
 
441
+	/*
442
+	 * Raise the GPIO reset line for the corresponding pipe to HIGH,
443
+	 * this is probably because it is active low so this takes the
444
+	 * respective pipe out of reset. (We have no code to put it back
445
+	 * into reset in this driver.)
446
+	 */
438
447
 	switch (pipe) {
439
448
 	case 0:
440
-		gpio = 128;
449
+		gpiod = gpiod_get(dev, "dsi-pipe0-reset", GPIOD_OUT_HIGH);
450
+		if (IS_ERR(gpiod))
451
+			return PTR_ERR(gpiod);
441
452
 		break;
442
453
 	case 2:
443
-		gpio = 34;
454
+		gpiod = gpiod_get(dev, "dsi-pipe2-reset", GPIOD_OUT_HIGH);
455
+		if (IS_ERR(gpiod))
456
+			return PTR_ERR(gpiod);
444
457
 		break;
445
458
 	default:
446
-		DRM_ERROR("Invalid output\n");
459
+		DRM_DEV_ERROR(dev, "Invalid output pipe\n");
447
460
 		return -EINVAL;
448
461
 	}
462
+	gpiod_put(gpiod);
449
463
 
450
-	ret = gpio_request(gpio, "gfx");
451
-	if (ret) {
452
-		DRM_ERROR("gpio_rqueset failed\n");
453
-		return ret;
454
-	}
464
+	/* Flush posted writes on the device */
465
+	gpiod = gpiod_get(dev, "dsi-pipe0-reset", GPIOD_ASIS);
466
+	if (IS_ERR(gpiod))
467
+		return PTR_ERR(gpiod);
468
+	gpiod_get_value(gpiod);
469
+	gpiod_put(gpiod);
455
470
 
456
-	ret = gpio_direction_output(gpio, 1);
457
-	if (ret) {
458
-		DRM_ERROR("gpio_direction_output failed\n");
459
-		goto gpio_error;
460
-	}
461
-
462
-	gpio_get_value(128);
463
-
464
-gpio_error:
465
-	if (gpio_is_valid(gpio))
466
-		gpio_free(gpio);
467
-
468
-	return ret;
471
+	return 0;
469
472
 }
470
473
 
471
474
 /*
..
..
@@ -496,7 +499,7 @@
496
499
 		return;
497
500
 	}
498
501
 
499
-	/*create a new connetor*/
502
+	/*create a new connector*/
500
503
 	dsi_connector = kzalloc(sizeof(struct mdfld_dsi_connector), GFP_KERNEL);
501
504
 	if (!dsi_connector) {
502
505
 		DRM_ERROR("No memory");
..
..
@@ -529,7 +532,7 @@
529
532
 	dsi_config->connector = dsi_connector;
530
533
 
531
534
 	if (!dsi_config->fixed_mode) {
532
-		DRM_ERROR("No pannel fixed mode was found\n");
535
+		DRM_ERROR("No panel fixed mode was found\n");
533
536
 		goto dsi_init_err0;
534
537
 	}
535
538