msm: mdss: Add QPIC display support

Enabled QPIC display support by stubbing out MDP specific
functions. Fixed compile errors by removing obsolete
include files.

Change-Id: Ibd0159bd530dcef69848a93ad2dd302d58dbc447
Signed-off-by: Naseer Ahmed <naseer@codeaurora.org>

drivers/video/fbdev/msm/mdss_fb.c

@@ -1028,6 +1028,11 @@ static int mdss_fb_probe(struct platform_device *pdev)
 	if (!pdata)
 		return -EPROBE_DEFER;
 
+	if (!mdp_instance) {
+		pr_err("mdss mdp resource not initialized yet\n");
+		return -ENODEV;
+	}
+
 	/*
 	 * alloc framebuffer info + par data
 	 */
@@ -3280,8 +3285,10 @@ void mdss_panelinfo_to_fb_var(struct mdss_panel_info *pinfo,
 	var->right_margin = pinfo->lcdc.h_front_porch;
 	var->left_margin = pinfo->lcdc.h_back_porch;
 	var->hsync_len = pinfo->lcdc.h_pulse_width;
-	var->pixclock = KHZ2PICOS((unsigned long int)pinfo->clk_rate/1000);
 
+	if (pinfo->clk_rate)
+		var->pixclock = KHZ2PICOS((unsigned long int)
+			pinfo->clk_rate/1000);
 	if (pinfo->physical_width)
 		var->width = pinfo->physical_width;
 	if (pinfo->physical_height)

drivers/video/fbdev/msm/mdss_mdp.h

@@ -1457,4 +1457,20 @@ void mdss_mdp_wb_free(struct mdss_mdp_writeback *wb);
 void mdss_mdp_ctl_dsc_setup(struct mdss_mdp_ctl *ctl,
 	struct mdss_panel_info *pinfo);
 
+#ifdef CONFIG_FB_MSM_MDP_NONE
+struct mdss_data_type *mdss_mdp_get_mdata(void)
+{
+	return NULL;
+}
+
+int mdss_mdp_copy_layer_pp_info(struct mdp_input_layer *layer)
+{
+	return -EFAULT;
+}
+
+void mdss_mdp_free_layer_pp_info(struct mdp_input_layer *layer)
+{
+}
+
+#endif /* CONFIG_FB_MSM_MDP_NONE */
 #endif /* MDSS_MDP_H */

drivers/video/fbdev/msm/mdss_panel.h

@@ -1002,11 +1002,12 @@ struct mdss_panel_timing *mdss_panel_get_timing_by_name(
 		const char *name);
 #else
 static inline int mdss_panel_debugfs_init(
-			struct mdss_panel_info *panel_info) { return 0; };
+		struct mdss_panel_info *panel_info,
+		char const *panel_name) { return 0; };
 static inline void mdss_panel_debugfs_cleanup(
-			struct mdss_panel_info *panel_info) { };
+		struct mdss_panel_info *panel_info) { };
 static inline void mdss_panel_debugfsinfo_to_panelinfo(
-			struct mdss_panel_info *panel_info) { };
+		struct mdss_panel_info *panel_info) { };
 static inline void mdss_panel_info_from_timing(struct mdss_panel_timing *pt,
 		struct mdss_panel_info *pinfo) { };
 static inline struct mdss_panel_timing *mdss_panel_get_timing_by_name(

drivers/video/fbdev/msm/mdss_qpic.c

@@ -1,4 +1,4 @@
-/* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2013-2015, The Linux Foundation. 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 and
@@ -32,7 +32,6 @@
 
 #include <linux/msm-sps.h>
 #include <linux/msm-bus.h>
-#include <mach/hardware.h>
 
 #include "mdss_fb.h"
 #include "mdss_qpic.h"
@@ -71,7 +70,12 @@ static struct platform_driver mdss_qpic_driver = {
 int qpic_on(struct msm_fb_data_type *mfd)
 {
 	int ret;
+
+	if (qpic_res->qpic_a_clk)
+		clk_prepare_enable(qpic_res->qpic_a_clk);
+
 	ret = mdss_qpic_panel_on(qpic_res->panel_data, &qpic_res->panel_io);
+	qpic_res->qpic_is_on = true;
 	return ret;
 }
 
@@ -81,6 +85,12 @@ int qpic_off(struct msm_fb_data_type *mfd)
 	ret = mdss_qpic_panel_off(qpic_res->panel_data, &qpic_res->panel_io);
 	if (use_irq)
 		qpic_interrupt_en(false);
+
+	if (qpic_res->qpic_a_clk)
+		clk_disable_unprepare(qpic_res->qpic_a_clk);
+
+	qpic_res->qpic_is_on = false;
+
 	return ret;
 }
 
@@ -110,6 +120,11 @@ static void mdss_qpic_pan_display(struct msm_fb_data_type *mfd)
 		return;
 	}
 
+	if (!qpic_res->qpic_is_on) {
+		pr_err("%s: Failed since panel is not ON\n");
+		return;
+	}
+
 	fbi = mfd->fbi;
 
 	bpp = fbi->var.bits_per_pixel / 8;
@@ -210,6 +225,9 @@ int qpic_register_panel(struct mdss_panel_data *pdata)
 	struct platform_device *mdss_fb_dev = NULL;
 	int rc;
 
+	if (!qpic_res)
+		return -ENODEV;
+
 	mdss_fb_dev = platform_device_alloc("mdss_fb", pdata->panel_info.pdest);
 	if (!mdss_fb_dev) {
 		pr_err("unable to allocate mdss_fb device\n");
@@ -448,7 +466,7 @@ static int qpic_wait_for_fifo(void)
 		data &= 0x3F;
 		if (data == 0)
 			return ret;
-		INIT_COMPLETION(qpic_res->fifo_eof_comp);
+		reinit_completion(&qpic_res->fifo_eof_comp);
 		QPIC_OUTP(QPIC_REG_QPIC_LCDC_IRQ_EN, (1 << 4));
 		ret = wait_for_completion_timeout(&qpic_res->fifo_eof_comp,
 				msecs_to_jiffies(QPIC_MAX_VSYNC_WAIT_TIME));
@@ -487,7 +505,7 @@ static int qpic_wait_for_eof(void)
 		data = QPIC_INP(QPIC_REG_QPIC_LCDC_IRQ_STTS);
 		if (data & (1 << 2))
 			return ret;
-		INIT_COMPLETION(qpic_res->fifo_eof_comp);
+		reinit_completion(&qpic_res->fifo_eof_comp);
 		QPIC_OUTP(QPIC_REG_QPIC_LCDC_IRQ_EN, (1 << 2));
 		ret = wait_for_completion_timeout(&qpic_res->fifo_eof_comp,
 				msecs_to_jiffies(QPIC_MAX_VSYNC_WAIT_TIME));
@@ -738,6 +756,10 @@ static int mdss_qpic_probe(struct platform_device *pdev)
 		goto probe_done;
 	}
 
+	qpic_res->qpic_a_clk = clk_get(&pdev->dev, "core_a_clk");
+	if (IS_ERR(qpic_res->qpic_a_clk))
+		pr_err("%s: Can't find core_a_clk", __func__);
+
 	qpic_res->irq = res->start;
 	qpic_res->res_init = true;
 

drivers/video/fbdev/msm/mdss_qpic.h

@@ -1,4 +1,4 @@
-/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2014-2015, The Linux Foundation. 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 and
@@ -15,7 +15,6 @@
 #define MDSS_QPIC_H
 
 #include <linux/list.h>
-#include <mach/scm-io.h>
 #include <linux/msm-sps.h>
 
 #include <linux/pinctrl/consumer.h>
@@ -86,6 +85,8 @@ struct qpic_data_type {
 	struct qpic_panel_io_desc panel_io;
 	u32 bus_handle;
 	struct completion fifo_eof_comp;
+	u32 qpic_is_on;
+	struct clk *qpic_a_clk;
 };
 
 u32 qpic_send_frame(

drivers/video/fbdev/msm/mdss_qpic_panel.c

@@ -1,4 +1,4 @@
-/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2014-2015, The Linux Foundation. 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 and
@@ -224,15 +224,18 @@ static int mdss_panel_parse_dt(struct platform_device *pdev,
 						__func__, __LINE__);
 		return -EINVAL;
 	}
-	panel_data->panel_info.xres = (!rc ? res[0] : 240);
-	panel_data->panel_info.yres = (!rc ? res[1] : 320);
+
+	pr_debug("panel res %d %d\n", res[0], res[1]);
+	panel_data->panel_info.xres = (!rc ? res[0] : 320);
+	panel_data->panel_info.yres = (!rc ? res[1] : 480);
 	rc = of_property_read_u32(np, "qcom,mdss-pan-bpp", &tmp);
 	if (rc) {
 		pr_err("%s:%d, panel bpp not specified\n",
 						__func__, __LINE__);
 		return -EINVAL;
 	}
-	panel_data->panel_info.bpp = (!rc ? tmp : 24);
+	pr_debug("panel bpp %d\n", tmp);
+	panel_data->panel_info.bpp = (!rc ? tmp : 18);
 	of_property_read_u32(np, "qcom,refresh_rate", &panel_refresh_rate);
 
 	panel_data->panel_info.type = EBI2_PANEL;
@@ -273,10 +276,6 @@ static int mdss_qpic_panel_probe(struct platform_device *pdev)
 		qpic_panel_off = ili9341_off;
 	}
 
-	if (qpic_panel_on == ili9341_on) {
-		vendor_pdata.panel_info.xres = 240;
-		vendor_pdata.panel_info.yres = 320;
-	}
 
 	rc = qpic_register_panel(&vendor_pdata);
 	if (rc)

drivers/video/fbdev/msm/mdss_smmu.h

@@ -170,7 +170,7 @@ static inline struct dma_buf_attachment *mdss_smmu_dma_buf_attach(
 		struct dma_buf *dma_buf, struct device *dev, int domain)
 {
 	struct mdss_data_type *mdata = mdss_mdp_get_mdata();
-	if (!mdata->smmu_ops.smmu_dma_buf_attach)
+	if (!mdata || !mdata->smmu_ops.smmu_dma_buf_attach)
 		return NULL;
 
 	return mdata->smmu_ops.smmu_dma_buf_attach(dma_buf, dev, domain);
@@ -203,7 +203,7 @@ static inline int mdss_smmu_dma_alloc_coherent(struct device *dev, size_t size,
 		gfp_t gfp, int domain)
 {
 	struct mdss_data_type *mdata = mdss_mdp_get_mdata();
-	if (!mdata->smmu_ops.smmu_dma_alloc_coherent)
+	if (!mdata || !mdata->smmu_ops.smmu_dma_alloc_coherent)
 		return -ENOSYS;
 
 	return mdata->smmu_ops.smmu_dma_alloc_coherent(dev, size,

drivers/video/fbdev/msm/qpic_panel_ili_qvga.c

@@ -1,4 +1,4 @@
-/* Copyright (c) 2013 - 2014, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2013-2015, The Linux Foundation. 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 and
@@ -24,8 +24,6 @@
 #include <linux/regulator/consumer.h>
 #include <linux/io.h>
 
-#include <mach/hardware.h>
-
 #include "mdss.h"
 #include "mdss_qpic.h"
 #include "mdss_qpic_panel.h"
@@ -45,7 +43,7 @@ static int panel_io_init(struct qpic_panel_io_desc *panel_io)
 	}
 	if (panel_io->avdd_vreg) {
 		rc = regulator_set_voltage(panel_io->avdd_vreg,
-			2700000, 2700000);
+			2704000, 2704000);
 		if (rc) {
 			pr_err("vdd_vreg->set_voltage failed, rc=%d\n", rc);
 			return -EINVAL;
@@ -77,6 +75,9 @@ static void panel_io_off(struct qpic_panel_io_desc *qpic_panel_io)
 
 void ili9341_off(struct qpic_panel_io_desc *qpic_panel_io)
 {
+	qpic_send_pkt(OP_SET_DISPLAY_OFF, NULL, 0);
+	/* wait for 20 ms after display off */
+	msleep(20);
 	panel_io_off(qpic_panel_io);
 }