From 558c73e26e8fadb4c1438af9d5277b4b3e8b5ba6 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Wed, 25 Sep 2013 14:40:06 +0300 Subject: [PATCH] OMAPDSS: DSI: fix fifosize DSI has separate TX and RX fifos. However, the current code only has one field where the fifo size is stored, and the code for both TX and RX config write to the same field. This has not caused issues, as we've been using the same fifo sizes. Fix this bug by creating separate fields for TX and RX fifo sizes. Signed-off-by: Tomi Valkeinen --- drivers/video/omap2/dss/dsi.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 6056b27cf73c..1cd3e47fd43f 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -297,7 +297,8 @@ struct dsi_data { struct { enum dsi_vc_source source; struct omap_dss_device *dssdev; - enum fifo_size fifo_size; + enum fifo_size tx_fifo_size; + enum fifo_size rx_fifo_size; int vc_id; } vc[4]; @@ -2427,14 +2428,14 @@ static void dsi_config_tx_fifo(struct platform_device *dsidev, int add = 0; int i; - dsi->vc[0].fifo_size = size1; - dsi->vc[1].fifo_size = size2; - dsi->vc[2].fifo_size = size3; - dsi->vc[3].fifo_size = size4; + dsi->vc[0].tx_fifo_size = size1; + dsi->vc[1].tx_fifo_size = size2; + dsi->vc[2].tx_fifo_size = size3; + dsi->vc[3].tx_fifo_size = size4; for (i = 0; i < 4; i++) { u8 v; - int size = dsi->vc[i].fifo_size; + int size = dsi->vc[i].tx_fifo_size; if (add + size > 4) { DSSERR("Illegal FIFO configuration\n"); @@ -2460,14 +2461,14 @@ static void dsi_config_rx_fifo(struct platform_device *dsidev, int add = 0; int i; - dsi->vc[0].fifo_size = size1; - dsi->vc[1].fifo_size = size2; - dsi->vc[2].fifo_size = size3; - dsi->vc[3].fifo_size = size4; + dsi->vc[0].rx_fifo_size = size1; + dsi->vc[1].rx_fifo_size = size2; + dsi->vc[2].rx_fifo_size = size3; + dsi->vc[3].rx_fifo_size = size4; for (i = 0; i < 4; i++) { u8 v; - int size = dsi->vc[i].fifo_size; + int size = dsi->vc[i].rx_fifo_size; if (add + size > 4) { DSSERR("Illegal FIFO configuration\n"); @@ -2920,7 +2921,7 @@ static int dsi_vc_send_long(struct platform_device *dsidev, int channel, DSSDBG("dsi_vc_send_long, %d bytes\n", len); /* len + header */ - if (dsi->vc[channel].fifo_size * 32 * 4 < len + 4) { + if (dsi->vc[channel].tx_fifo_size * 32 * 4 < len + 4) { DSSERR("unable to send long packet: packet too long.\n"); return -EINVAL; } -- 2.39.5