26 #include "gsc-core.h"
340 void gsc_set_prefbuf(struct gsc_dev *gsc, struct gsc_frame *frm)  in gsc_set_prefbuf()  argument
392 	struct gsc_dev *gsc = ctx->gsc_dev;  in gsc_try_fmt_mplane()  local
393 	struct gsc_variant *variant = gsc->variant;  in gsc_try_fmt_mplane()
521 	struct gsc_dev *gsc = ctx->gsc_dev;  in gsc_try_selection()  local
522 	struct gsc_variant *variant = gsc->variant;  in gsc_try_selection()
701 	struct gsc_dev *gsc = ctx->gsc_dev;  in __gsc_s_ctrl()  local
702 	struct gsc_variant *variant = gsc->variant;  in __gsc_s_ctrl()
863 	struct gsc_dev *gsc = priv;  in gsc_irq_handler()  local
867 	gsc_irq = gsc_hw_get_irq_status(gsc);  in gsc_irq_handler()
868 	gsc_hw_clear_irq(gsc, gsc_irq);  in gsc_irq_handler()
875 	spin_lock(&gsc->slock);  in gsc_irq_handler()
877 	if (test_and_clear_bit(ST_M2M_PEND, &gsc->state)) {  in gsc_irq_handler()
879 		gsc_hw_enable_control(gsc, false);  in gsc_irq_handler()
881 		if (test_and_clear_bit(ST_M2M_SUSPENDING, &gsc->state)) {  in gsc_irq_handler()
882 			set_bit(ST_M2M_SUSPENDED, &gsc->state);  in gsc_irq_handler()
883 			wake_up(&gsc->irq_queue);  in gsc_irq_handler()
886 		ctx = v4l2_m2m_get_curr_priv(gsc->m2m.m2m_dev);  in gsc_irq_handler()
891 		spin_unlock(&gsc->slock);  in gsc_irq_handler()
897 			wake_up(&gsc->irq_queue);  in gsc_irq_handler()
903 	spin_unlock(&gsc->slock);  in gsc_irq_handler()
1087 		.compatible = "samsung,exynos5250-gsc",
1091 		.compatible = "samsung,exynos5420-gsc",
1095 		.compatible = "samsung,exynos5433-gsc",
1099 		.compatible = "samsung,exynos5-gsc",
1108 	struct gsc_dev *gsc;  in gsc_probe()  local
1115 	gsc = devm_kzalloc(dev, sizeof(struct gsc_dev), GFP_KERNEL);  in gsc_probe()
1116 	if (!gsc)  in gsc_probe()
1119 	ret = of_alias_get_id(pdev->dev.of_node, "gsc");  in gsc_probe()
1124 		dev_info(dev, "compatible 'exynos5-gsc' is deprecated\n");  in gsc_probe()
1126 	gsc->id = ret;  in gsc_probe()
1127 	if (gsc->id >= drv_data->num_entities) {  in gsc_probe()
1128 		dev_err(dev, "Invalid platform device id: %d\n", gsc->id);  in gsc_probe()
1132 	gsc->num_clocks = drv_data->num_clocks;  in gsc_probe()
1133 	gsc->variant = drv_data->variant[gsc->id];  in gsc_probe()
1134 	gsc->pdev = pdev;  in gsc_probe()
1136 	init_waitqueue_head(&gsc->irq_queue);  in gsc_probe()
1137 	spin_lock_init(&gsc->slock);  in gsc_probe()
1138 	mutex_init(&gsc->lock);  in gsc_probe()
1141 	gsc->regs = devm_ioremap_resource(dev, res);  in gsc_probe()
1142 	if (IS_ERR(gsc->regs))  in gsc_probe()
1143 		return PTR_ERR(gsc->regs);  in gsc_probe()
1151 	for (i = 0; i < gsc->num_clocks; i++) {  in gsc_probe()
1152 		gsc->clock[i] = devm_clk_get(dev, drv_data->clk_names[i]);  in gsc_probe()
1153 		if (IS_ERR(gsc->clock[i])) {  in gsc_probe()
1156 			return PTR_ERR(gsc->clock[i]);  in gsc_probe()
1160 	for (i = 0; i < gsc->num_clocks; i++) {  in gsc_probe()
1161 		ret = clk_prepare_enable(gsc->clock[i]);  in gsc_probe()
1166 				clk_disable_unprepare(gsc->clock[i]);  in gsc_probe()
1172 				0, pdev->name, gsc);  in gsc_probe()
1178 	ret = v4l2_device_register(dev, &gsc->v4l2_dev);  in gsc_probe()
1182 	ret = gsc_register_m2m_device(gsc);  in gsc_probe()
1186 	platform_set_drvdata(pdev, gsc);  in gsc_probe()
1188 	gsc_hw_set_sw_reset(gsc);  in gsc_probe()
1189 	gsc_wait_reset(gsc);  in gsc_probe()
1193 	dev_dbg(dev, "gsc-%d registered successfully\n", gsc->id);  in gsc_probe()
1201 	v4l2_device_unregister(&gsc->v4l2_dev);  in gsc_probe()
1203 	for (i = gsc->num_clocks - 1; i >= 0; i--)  in gsc_probe()
1204 		clk_disable_unprepare(gsc->clock[i]);  in gsc_probe()
1210 	struct gsc_dev *gsc = platform_get_drvdata(pdev);  in gsc_remove()  local
1215 	gsc_unregister_m2m_device(gsc);  in gsc_remove()
1216 	v4l2_device_unregister(&gsc->v4l2_dev);  in gsc_remove()
1219 	for (i = 0; i < gsc->num_clocks; i++)  in gsc_remove()
1220 		clk_disable_unprepare(gsc->clock[i]);  in gsc_remove()
1230 static int gsc_m2m_suspend(struct gsc_dev *gsc)  in gsc_m2m_suspend()  argument
1235 	spin_lock_irqsave(&gsc->slock, flags);  in gsc_m2m_suspend()
1236 	if (!gsc_m2m_pending(gsc)) {  in gsc_m2m_suspend()
1237 		spin_unlock_irqrestore(&gsc->slock, flags);  in gsc_m2m_suspend()
1240 	clear_bit(ST_M2M_SUSPENDED, &gsc->state);  in gsc_m2m_suspend()
1241 	set_bit(ST_M2M_SUSPENDING, &gsc->state);  in gsc_m2m_suspend()
1242 	spin_unlock_irqrestore(&gsc->slock, flags);  in gsc_m2m_suspend()
1244 	timeout = wait_event_timeout(gsc->irq_queue,  in gsc_m2m_suspend()
1245 			     test_bit(ST_M2M_SUSPENDED, &gsc->state),  in gsc_m2m_suspend()
1248 	clear_bit(ST_M2M_SUSPENDING, &gsc->state);  in gsc_m2m_suspend()
1252 static void gsc_m2m_resume(struct gsc_dev *gsc)  in gsc_m2m_resume()  argument
1257 	spin_lock_irqsave(&gsc->slock, flags);  in gsc_m2m_resume()
1259 	ctx = gsc->m2m.ctx;  in gsc_m2m_resume()
1260 	gsc->m2m.ctx = NULL;  in gsc_m2m_resume()
1261 	spin_unlock_irqrestore(&gsc->slock, flags);  in gsc_m2m_resume()
1263 	if (test_and_clear_bit(ST_M2M_SUSPENDED, &gsc->state))  in gsc_m2m_resume()
1269 	struct gsc_dev *gsc = dev_get_drvdata(dev);  in gsc_runtime_resume()  local
1273 	pr_debug("gsc%d: state: 0x%lx\n", gsc->id, gsc->state);  in gsc_runtime_resume()
1275 	for (i = 0; i < gsc->num_clocks; i++) {  in gsc_runtime_resume()
1276 		ret = clk_prepare_enable(gsc->clock[i]);  in gsc_runtime_resume()
1279 				clk_disable_unprepare(gsc->clock[i]);  in gsc_runtime_resume()
1284 	gsc_hw_set_sw_reset(gsc);  in gsc_runtime_resume()
1285 	gsc_wait_reset(gsc);  in gsc_runtime_resume()
1286 	gsc_m2m_resume(gsc);  in gsc_runtime_resume()
1293 	struct gsc_dev *gsc = dev_get_drvdata(dev);  in gsc_runtime_suspend()  local
1297 	ret = gsc_m2m_suspend(gsc);  in gsc_runtime_suspend()
1301 	for (i = gsc->num_clocks - 1; i >= 0; i--)  in gsc_runtime_suspend()
1302 		clk_disable_unprepare(gsc->clock[i]);  in gsc_runtime_suspend()
1304 	pr_debug("gsc%d: state: 0x%lx\n", gsc->id, gsc->state);  in gsc_runtime_suspend()