From: Arnd Bergmann <arnd@kernel.org>
To: linux-omap@vger.kernel.org, tony@atomide.com,
aaro.koskinen@iki.fi, jmkrzyszt@gmail.com
Cc: Arnd Bergmann <arnd@arndb.de>,
Russell King <linux@armlinux.org.uk>,
Paul Walmsley <paul@pwsan.com>, Kevin Hilman <khilman@kernel.org>,
Peter Ujfalusi <peter.ujfalusi@gmail.com>,
Vinod Koul <vkoul@kernel.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
Dominik Brodowski <linux@dominikbrodowski.net>,
Mark Brown <broonie@kernel.org>, Felipe Balbi <balbi@kernel.org>,
Alan Stern <stern@rowland.harvard.edu>,
Lee Jones <lee.jones@linaro.org>,
Daniel Thompson <daniel.thompson@linaro.org>,
Jingoo Han <jingoohan1@gmail.com>, Helge Deller <deller@gmx.de>,
Linus Walleij <linus.walleij@linaro.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
dmaengine@vger.kernel.org, linux-input@vger.kernel.org,
linux-mmc@vger.kernel.org, linux-serial@vger.kernel.org,
dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org,
alsa-devel@alsa-project.org
Subject: [PATCH 20/41] dma: omap: hide legacy interface
Date: Tue, 19 Apr 2022 15:37:02 +0200 [thread overview]
Message-ID: <20220419133723.1394715-21-arnd@kernel.org> (raw)
In-Reply-To: <20220419133723.1394715-1-arnd@kernel.org>
From: Arnd Bergmann <arnd@arndb.de>
The legacy interface for omap-dma is only used on OMAP1, and the
same is true for the non-DT case. Make both of these conditional on
CONFIG_ARCH_OMAP1 being set to simplify the dependency.
The non-OMAP stub functions in include/linux/omap-dma.h are note needed
any more either now, because they are only called on OMAP1.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/dma/ti/omap-dma.c | 19 +++++++++++++------
include/linux/omap-dma.h | 22 ----------------------
2 files changed, 13 insertions(+), 28 deletions(-)
diff --git a/drivers/dma/ti/omap-dma.c b/drivers/dma/ti/omap-dma.c
index 8e52a0dc1f78..27f5019bdc1e 100644
--- a/drivers/dma/ti/omap-dma.c
+++ b/drivers/dma/ti/omap-dma.c
@@ -699,6 +699,11 @@ static void omap_dma_put_lch(struct omap_dmadev *od, int lch)
mutex_unlock(&od->lch_lock);
}
+static inline bool omap_dma_legacy(struct omap_dmadev *od)
+{
+ return IS_ENABLED(CONFIG_ARCH_OMAP1) && od->legacy;
+}
+
static int omap_dma_alloc_chan_resources(struct dma_chan *chan)
{
struct omap_dmadev *od = to_omap_dma_dev(chan->device);
@@ -706,7 +711,7 @@ static int omap_dma_alloc_chan_resources(struct dma_chan *chan)
struct device *dev = od->ddev.dev;
int ret;
- if (od->legacy) {
+ if (omap_dma_legacy(od)) {
ret = omap_request_dma(c->dma_sig, "DMA engine",
omap_dma_callback, c, &c->dma_ch);
} else {
@@ -718,7 +723,7 @@ static int omap_dma_alloc_chan_resources(struct dma_chan *chan)
if (ret >= 0) {
omap_dma_assign(od, c, c->dma_ch);
- if (!od->legacy) {
+ if (!omap_dma_legacy(od)) {
unsigned val;
spin_lock_irq(&od->irq_lock);
@@ -757,7 +762,7 @@ static void omap_dma_free_chan_resources(struct dma_chan *chan)
struct omap_dmadev *od = to_omap_dma_dev(chan->device);
struct omap_chan *c = to_omap_dma_chan(chan);
- if (!od->legacy) {
+ if (!omap_dma_legacy(od)) {
spin_lock_irq(&od->irq_lock);
od->irq_enable_mask &= ~BIT(c->dma_ch);
omap_dma_glbl_write(od, IRQENABLE_L1, od->irq_enable_mask);
@@ -768,7 +773,7 @@ static void omap_dma_free_chan_resources(struct dma_chan *chan)
od->lch_map[c->dma_ch] = NULL;
vchan_free_chan_resources(&c->vc);
- if (od->legacy)
+ if (omap_dma_legacy(od))
omap_free_dma(c->dma_ch);
else
omap_dma_put_lch(od, c->dma_ch);
@@ -1674,12 +1679,14 @@ static int omap_dma_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "omap_system_dma_plat_info is missing");
return -ENODEV;
}
- } else {
+ } else if (IS_ENABLED(CONFIG_ARCH_OMAP1)) {
od->cfg = &default_cfg;
od->plat = omap_get_plat_info();
if (!od->plat)
return -EPROBE_DEFER;
+ } else {
+ return -ENODEV;
}
od->reg_map = od->plat->reg_map;
@@ -1855,7 +1862,7 @@ static int omap_dma_remove(struct platform_device *pdev)
dma_async_device_unregister(&od->ddev);
- if (!od->legacy) {
+ if (!omap_dma_legacy(od)) {
/* Disable all interrupts */
omap_dma_glbl_write(od, IRQENABLE_L0, 0);
}
diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h
index 07fa58ae9902..254b4e10511b 100644
--- a/include/linux/omap-dma.h
+++ b/include/linux/omap-dma.h
@@ -292,7 +292,6 @@ struct omap_system_dma_plat_info {
#define dma_omap15xx() __dma_omap15xx(d)
#define dma_omap16xx() __dma_omap16xx(d)
-#if defined(CONFIG_ARCH_OMAP)
extern struct omap_system_dma_plat_info *omap_get_plat_info(void);
extern void omap_set_dma_priority(int lch, int dst_port, int priority);
@@ -340,25 +339,4 @@ static inline int omap_lcd_dma_running(void)
}
#endif
-#else /* CONFIG_ARCH_OMAP */
-static inline void omap_set_dma_priority(int lch, int dst_port, int priority)
-{
-}
-
-static inline struct omap_system_dma_plat_info *omap_get_plat_info(void)
-{
- return NULL;
-}
-
-static inline int omap_request_dma(int dev_id, const char *dev_name,
- void (*callback)(int lch, u16 ch_status, void *data),
- void *data, int *dma_ch)
-{
- return -ENODEV;
-}
-
-static inline void omap_free_dma(int ch) { }
-
-#endif /* CONFIG_ARCH_OMAP */
-
#endif /* __LINUX_OMAP_DMA_H */
--
2.29.2
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next prev parent reply other threads:[~2022-04-19 14:29 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-19 13:36 [PATCH 00/41] OMAP1 full multiplatform conversion Arnd Bergmann
2022-04-19 13:36 ` [PATCH 01/41] video: fbdev: omapfb: lcd_ams_delta: fix unused variable warning Arnd Bergmann
2022-04-20 9:24 ` Sergei Shtylyov
2022-04-20 11:32 ` Arnd Bergmann
2022-04-19 13:36 ` [PATCH 02/41] ARM: omap1: innovator: pass lcd control address as pdata Arnd Bergmann
2022-04-19 13:36 ` [PATCH 03/41] ARM: omap1: move lcd_dma code into omapfb driver Arnd Bergmann
2022-04-19 13:36 ` [PATCH 04/41] ARM: omap1: declare a dummy omap_set_dma_priority Arnd Bergmann
2022-04-19 13:36 ` [PATCH 05/41] fbdev: omap: pass irqs as resource Arnd Bergmann
2022-04-19 13:36 ` [PATCH 06/41] ARM: omap1: ams-delta: remove camera leftovers Arnd Bergmann
2022-04-19 13:36 ` [PATCH 07/41] ARM: omap1: move mach/usb.h to include/linux/soc Arnd Bergmann
2022-04-19 13:36 ` [PATCH 08/41] ARM: omap1: move some headers " Arnd Bergmann
2022-04-19 13:36 ` [PATCH 09/41] ARM: omap1: move perseus spi pinconf to board file Arnd Bergmann
2022-04-19 13:36 ` [PATCH 10/41] ARM: omap1: move CF chipselect setup " Arnd Bergmann
2022-04-19 13:36 ` [PATCH 11/41] fbdev: omap: avoid using mach/*.h files Arnd Bergmann
2022-04-19 13:36 ` [PATCH 12/41] usb: omap: avoid mach/*.h headers Arnd Bergmann
2022-04-19 13:36 ` [PATCH 13/41] clocksource: ti-dmtimer: avoid using mach/hardware.h Arnd Bergmann
2022-04-19 13:36 ` [PATCH 14/41] serial: 8250/omap1: include linux/soc/ti/omap1-soc.h Arnd Bergmann
2022-04-20 14:46 ` Greg KH
2022-04-19 13:36 ` [PATCH 15/41] input: omap: void using mach/*.h headers Arnd Bergmann
2022-04-20 20:44 ` Dmitry Torokhov
2022-04-19 13:36 ` [PATCH 16/41] ARM: omap1: innovator: move ohci phy power handling to board file Arnd Bergmann
2022-04-19 13:36 ` [PATCH 17/41] ARM: omap1: move 32k counter from plat-omap to mach-omap1 Arnd Bergmann
2022-04-21 6:17 ` Tony Lindgren
2022-04-19 13:37 ` [PATCH 18/41] ARM: omap: remove debug-leds driver Arnd Bergmann
2022-04-19 13:37 ` [PATCH 19/41] ARM: omap: dma: make usb support optional Arnd Bergmann
2022-04-29 19:24 ` Péter Ujfalusi
2022-04-19 13:37 ` Arnd Bergmann [this message]
2022-04-22 5:55 ` [PATCH 20/41] dma: omap: hide legacy interface Vinod Koul
2022-04-19 13:37 ` [PATCH 21/41] ARM: omap1: dma: remove omap2 specific bits Arnd Bergmann
2022-04-29 19:26 ` Péter Ujfalusi
2022-04-19 13:37 ` [PATCH 22/41] ARM: omap1: move plat/dma.c to mach/omap-dma.c Arnd Bergmann
2022-04-29 19:36 ` Péter Ujfalusi
2022-04-19 13:37 ` [PATCH 23/41] ARM: omap: split up arch/arm/plat-omap/Kconfig Arnd Bergmann
2022-04-19 13:37 ` [PATCH 24/41] ARM: omap: un-merge plat/sram.c Arnd Bergmann
2022-04-21 6:32 ` Tony Lindgren
2022-04-19 13:37 ` [PATCH 25/41] ARM: omap: remove empty plat-omap directory Arnd Bergmann
2022-04-19 13:37 ` [PATCH 26/41] ARM: omap1: relocate static I/O mapping Arnd Bergmann
2022-04-20 13:46 ` Aaro Koskinen
2022-04-20 19:20 ` Arnd Bergmann
2022-04-21 5:19 ` Tony Lindgren
2022-04-19 13:37 ` [PATCH 27/41] ARM: omap1: use pci_remap_iospace() for omap_cf Arnd Bergmann
2022-04-19 13:37 ` [PATCH 28/41] ARM: omap1: move mach/*.h into mach directory Arnd Bergmann
2022-04-19 13:37 ` [PATCH 29/41] ARM: omap1: fix build with no SoC selected Arnd Bergmann
2022-04-19 13:37 ` [PATCH 30/41] ARM: OMAP1: Prepare for conversion of OMAP1 clocks to CCF Arnd Bergmann
2022-04-19 13:37 ` [PATCH 31/41] ARM: OMAP1: clock: Fix early UART rate issues Arnd Bergmann
2022-04-19 13:37 ` [PATCH 32/41] ARM: OMAP1: clock: Fix UART rate reporting algorithm Arnd Bergmann
2022-04-19 13:37 ` [PATCH 33/41] ARM: OMAP1: clock: Remove unused code Arnd Bergmann
2022-04-19 13:37 ` [PATCH 34/41] ARM: OMAP1: clock: Remove noop code Arnd Bergmann
2022-04-19 13:37 ` [PATCH 35/41] usb: host: ohci-omap: Make it CCF clk API compatible Arnd Bergmann
2022-04-19 13:37 ` [PATCH 36/41] usb: gadget: omap_udc: " Arnd Bergmann
2022-04-19 13:37 ` [PATCH 37/41] [MERGED] video: fbdev: omap: " Arnd Bergmann
2022-04-19 13:37 ` [PATCH 38/41] [MERGED] mmc: " Arnd Bergmann
2022-04-19 13:37 ` [PATCH 39/41] [MERGED] ASoC: ti: osk5912: " Arnd Bergmann
2022-04-19 13:37 ` [PATCH 40/41] [TO BE REBASED] ARM: OMAP1: clock: Convert to CCF Arnd Bergmann
2022-04-21 6:24 ` Tony Lindgren
2022-04-19 13:37 ` [PATCH 41/41] [TO BE REBASED] ARM: omap1: enable multiplatform Arnd Bergmann
2022-04-19 14:15 ` [PATCH 00/41] OMAP1 full multiplatform conversion Ulf Hansson
2022-04-21 6:27 ` Tony Lindgren
2022-04-20 17:08 ` Aaro Koskinen
2022-04-20 20:00 ` Arnd Bergmann
2022-04-21 13:34 ` Aaro Koskinen
2022-04-21 14:46 ` Arnd Bergmann
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