The patch titled
Subject: video: exynos mipi dsi: Properly interpret the interrupt source flags
has been removed from the -mm tree. Its filename was
video-exynos-mipi-dsi-properly-interpret-the-interrupt-source-flags.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Subject: video: exynos mipi dsi: Properly interpret the interrupt source flags
Rework the interrupt handler so the RX_DONE, FIFO_EMPTY interrupts are
properly detected. This prevents missing the interrupts when there are
other bits set in the INTSRC register than just RX_DONE and FIFO_EMPTY.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
Signed-off-by: Donghwa Lee <dh09.lee@xxxxxxxxxxx>
Signed-off-by: Inki Dae <inki.dae@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Cc: Florian Tobias Schandinat <FlorianSchandinat@xxxxxx>
Cc: Richard Purdie <rpurdie@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/exynos/exynos_mipi_dsi_common.c | 28 +++++-----------
1 file changed, 10 insertions(+), 18 deletions(-)
diff -puN drivers/video/exynos/exynos_mipi_dsi_common.c~video-exynos-mipi-dsi-properly-interpret-the-interrupt-source-flags drivers/video/exynos/exynos_mipi_dsi_common.c
--- a/drivers/video/exynos/exynos_mipi_dsi_common.c~video-exynos-mipi-dsi-properly-interpret-the-interrupt-source-flags
+++ a/drivers/video/exynos/exynos_mipi_dsi_common.c
@@ -76,33 +76,25 @@ static unsigned int dpll_table[15] = {
irqreturn_t exynos_mipi_dsi_interrupt_handler(int irq, void *dev_id)
{
- unsigned int intsrc = 0;
- unsigned int intmsk = 0;
- struct mipi_dsim_device *dsim = NULL;
-
- dsim = dev_id;
- if (!dsim) {
- dev_dbg(dsim->dev, KERN_ERR "%s:error: wrong parameter\n",
- __func__);
- return IRQ_HANDLED;
+ struct mipi_dsim_device *dsim = dev_id;
+ unsigned int intsrc, intmsk;
+
+ if (dsim == NULL) {
+ dev_err(dsim->dev, "%s: wrong parameter\n", __func__);
+ return IRQ_NONE;
}
intsrc = exynos_mipi_dsi_read_interrupt(dsim);
intmsk = exynos_mipi_dsi_read_interrupt_mask(dsim);
+ intmsk = ~intmsk & intsrc;
- intmsk = ~(intmsk) & intsrc;
-
- switch (intmsk) {
- case INTMSK_RX_DONE:
+ if (intsrc & INTMSK_RX_DONE) {
complete(&dsim_rd_comp);
dev_dbg(dsim->dev, "MIPI INTMSK_RX_DONE\n");
- break;
- case INTMSK_FIFO_EMPTY:
+ }
+ if (intsrc & INTMSK_FIFO_EMPTY) {
complete(&dsim_wr_comp);
dev_dbg(dsim->dev, "MIPI INTMSK_FIFO_EMPTY\n");
- break;
- default:
- break;
}
exynos_mipi_dsi_clear_interrupt(dsim, intmsk);
_
Patches currently in -mm which might be from s.nawrocki@xxxxxxxxxxx are
origin.patch
linux-next.patch
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