diff options
Diffstat (limited to 'drivers/video/fbdev/omap2/omapfb/dss/dsi.c')
| -rw-r--r-- | drivers/video/fbdev/omap2/omapfb/dss/dsi.c | 80 |
1 files changed, 34 insertions, 46 deletions
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c index 30d49f3800b3..370e8623754e 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c @@ -1,20 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * linux/drivers/video/omap2/dss/dsi.c * * Copyright (C) 2009 Nokia Corporation * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. */ #define DSS_SUBSYS_NAME "DSI" @@ -39,6 +28,7 @@ #include <linux/debugfs.h> #include <linux/pm_runtime.h> #include <linux/of.h> +#include <linux/of_graph.h> #include <linux/of_platform.h> #include <linux/component.h> @@ -410,7 +400,7 @@ module_param(dsi_perf, bool, 0644); static inline struct dsi_data *dsi_get_dsidrv_data(struct platform_device *dsidev) { - return dev_get_drvdata(&dsidev->dev); + return platform_get_drvdata(dsidev); } static inline struct platform_device *dsi_get_dsidev_from_dssdev(struct omap_dss_device *dssdev) @@ -845,7 +835,7 @@ static irqreturn_t omap_dsi_irq_handler(int irq, void *arg) #ifdef DSI_CATCH_MISSING_TE if (irqstatus & DSI_IRQ_TE_TRIGGER) - del_timer(&dsi->te_timer); + timer_delete(&dsi->te_timer); #endif /* make a copy and unlock, so that isrs can unregister @@ -1147,9 +1137,10 @@ static int dsi_runtime_get(struct platform_device *dsidev) DSSDBG("dsi_runtime_get\n"); - r = pm_runtime_get_sync(&dsi->pdev->dev); - WARN_ON(r < 0); - return r < 0 ? r : 0; + r = pm_runtime_resume_and_get(&dsi->pdev->dev); + if (WARN_ON(r < 0)) + return r; + return 0; } static void dsi_runtime_put(struct platform_device *dsidev) @@ -1186,13 +1177,12 @@ static int dsi_regulator_init(struct platform_device *dsidev) static void _dsi_print_reset_status(struct platform_device *dsidev) { - u32 l; int b0, b1, b2; /* A dummy read using the SCP interface to any DSIPHY register is * required after DSIPHY reset to complete the reset of the DSI complex * I/O. */ - l = dsi_read_reg(dsidev, DSI_DSIPHY_CFG5); + dsi_read_reg(dsidev, DSI_DSIPHY_CFG5); if (dss_has_feature(FEAT_DSI_REVERSE_TXCLKESC)) { b0 = 28; @@ -1547,22 +1537,28 @@ static void dsi_dump_dsidev_irqs(struct platform_device *dsidev, { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); unsigned long flags; - struct dsi_irq_stats stats; + struct dsi_irq_stats *stats; + + stats = kzalloc(sizeof(*stats), GFP_KERNEL); + if (!stats) { + seq_printf(s, "out of memory\n"); + return; + } spin_lock_irqsave(&dsi->irq_stats_lock, flags); - stats = dsi->irq_stats; + *stats = dsi->irq_stats; memset(&dsi->irq_stats, 0, sizeof(dsi->irq_stats)); dsi->irq_stats.last_reset = jiffies; spin_unlock_irqrestore(&dsi->irq_stats_lock, flags); seq_printf(s, "period %u ms\n", - jiffies_to_msecs(jiffies - stats.last_reset)); + jiffies_to_msecs(jiffies - stats->last_reset)); - seq_printf(s, "irqs %d\n", stats.irq_count); + seq_printf(s, "irqs %d\n", stats->irq_count); #define PIS(x) \ - seq_printf(s, "%-20s %10d\n", #x, stats.dsi_irqs[ffs(DSI_IRQ_##x)-1]); + seq_printf(s, "%-20s %10d\n", #x, stats->dsi_irqs[ffs(DSI_IRQ_##x)-1]) seq_printf(s, "-- DSI%d interrupts --\n", dsi->module_id + 1); PIS(VC0); @@ -1586,10 +1582,10 @@ static void dsi_dump_dsidev_irqs(struct platform_device *dsidev, #define PIS(x) \ seq_printf(s, "%-20s %10d %10d %10d %10d\n", #x, \ - stats.vc_irqs[0][ffs(DSI_VC_IRQ_##x)-1], \ - stats.vc_irqs[1][ffs(DSI_VC_IRQ_##x)-1], \ - stats.vc_irqs[2][ffs(DSI_VC_IRQ_##x)-1], \ - stats.vc_irqs[3][ffs(DSI_VC_IRQ_##x)-1]); + stats->vc_irqs[0][ffs(DSI_VC_IRQ_##x)-1], \ + stats->vc_irqs[1][ffs(DSI_VC_IRQ_##x)-1], \ + stats->vc_irqs[2][ffs(DSI_VC_IRQ_##x)-1], \ + stats->vc_irqs[3][ffs(DSI_VC_IRQ_##x)-1]); seq_printf(s, "-- VC interrupts --\n"); PIS(CS); @@ -1605,7 +1601,7 @@ static void dsi_dump_dsidev_irqs(struct platform_device *dsidev, #define PIS(x) \ seq_printf(s, "%-20s %10d\n", #x, \ - stats.cio_irqs[ffs(DSI_CIO_IRQ_##x)-1]); + stats->cio_irqs[ffs(DSI_CIO_IRQ_##x)-1]); seq_printf(s, "-- CIO interrupts --\n"); PIS(ERRSYNCESC1); @@ -1629,6 +1625,8 @@ static void dsi_dump_dsidev_irqs(struct platform_device *dsidev, PIS(ULPSACTIVENOT_ALL0); PIS(ULPSACTIVENOT_ALL1); #undef PIS + + kfree(stats); } static void dsi1_dump_irqs(struct seq_file *s) @@ -2385,8 +2383,6 @@ static int dsi_sync_vc(struct platform_device *dsidev, int channel) WARN_ON(!dsi_bus_is_locked(dsidev)); - WARN_ON(in_interrupt()); - if (!dsi_vc_is_enabled(dsidev, channel)) return 0; @@ -3635,7 +3631,7 @@ static int dsi_proto_config(struct platform_device *dsidev) static void dsi_proto_timings(struct platform_device *dsidev) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - unsigned tlpx, tclk_zero, tclk_prepare, tclk_trail; + unsigned tlpx, tclk_zero, tclk_prepare; unsigned tclk_pre, tclk_post; unsigned ths_prepare, ths_prepare_ths_zero, ths_zero; unsigned ths_trail, ths_exit; @@ -3654,7 +3650,6 @@ static void dsi_proto_timings(struct platform_device *dsidev) r = dsi_read_reg(dsidev, DSI_DSIPHY_CFG1); tlpx = FLD_GET(r, 20, 16) * 2; - tclk_trail = FLD_GET(r, 15, 8); tclk_zero = FLD_GET(r, 7, 0); r = dsi_read_reg(dsidev, DSI_DSIPHY_CFG2); @@ -3988,7 +3983,7 @@ static void dsi_update_screen_dispc(struct platform_device *dsidev) } #ifdef DSI_CATCH_MISSING_TE -static void dsi_te_timeout(unsigned long arg) +static void dsi_te_timeout(struct timer_list *unused) { DSSERR("TE not received for 250ms!\n"); } @@ -4048,7 +4043,6 @@ static int dsi_update(struct omap_dss_device *dssdev, int channel, { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - u16 dw, dh; dsi_perf_mark_setup(dsidev); @@ -4057,11 +4051,8 @@ static int dsi_update(struct omap_dss_device *dssdev, int channel, dsi->framedone_callback = callback; dsi->framedone_data = data; - dw = dsi->timings.x_res; - dh = dsi->timings.y_res; - #ifdef DSI_PERF_MEASURE - dsi->update_bytes = dw * dh * + dsi->update_bytes = dsi->timings.x_res * dsi->timings.y_res * dsi_get_pixel_size(dsi->pix_fmt) / 8; #endif dsi_update_screen_dispc(dsidev); @@ -5089,7 +5080,7 @@ static int dsi_probe_of(struct platform_device *pdev) struct device_node *ep; struct omap_dsi_pin_config pin_cfg; - ep = omapdss_of_get_first_endpoint(node); + ep = of_graph_get_endpoint_by_regs(node, 0, -1); if (!ep) return 0; @@ -5280,7 +5271,7 @@ static int dsi_bind(struct device *dev, struct device *master, void *data) return -ENOMEM; dsi->pdev = dsidev; - dev_set_drvdata(&dsidev->dev, dsi); + platform_set_drvdata(dsidev, dsi); spin_lock_init(&dsi->irq_lock); spin_lock_init(&dsi->errors_lock); @@ -5298,9 +5289,7 @@ static int dsi_bind(struct device *dev, struct device *master, void *data) dsi_framedone_timeout_work_callback); #ifdef DSI_CATCH_MISSING_TE - init_timer(&dsi->te_timer); - dsi->te_timer.function = dsi_te_timeout; - dsi->te_timer.data = 0; + timer_setup(&dsi->te_timer, dsi_te_timeout, 0); #endif res = platform_get_resource_byname(dsidev, IORESOURCE_MEM, "proto"); @@ -5507,10 +5496,9 @@ static int dsi_probe(struct platform_device *pdev) return component_add(&pdev->dev, &dsi_component_ops); } -static int dsi_remove(struct platform_device *pdev) +static void dsi_remove(struct platform_device *pdev) { component_del(&pdev->dev, &dsi_component_ops); - return 0; } static int dsi_runtime_suspend(struct device *dev) |