[PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770

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* [PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770
@ 2025-01-02 18:19 Aaro Koskinen
  2025-01-02 18:19 ` [PATCH 1/3] fbdev: omap: use threaded IRQ for LCD DMA Aaro Koskinen
                   ` (3 more replies)
  0 siblings, 4 replies; 12+ messages in thread
From: Aaro Koskinen @ 2025-01-02 18:19 UTC (permalink / raw)
  To: Dmitry Torokhov, Helge Deller, Janusz Krzysztofik, Tony Lindgren,
	Linus Walleij, linux-fbdev, linux-omap, linux-input
  Cc: linux-kernel, Aaro Koskinen

Hi all,

This series restores the ads7846 touchscreen functionality on Nokia 770
(and maybe on some other older boards using half-duplex SPI). While the
performance might not be optimal, it's again possible to control the device
using the screen, for testing/development purposes at least.

A.

Aaro Koskinen (3):
  fbdev: omap: use threaded IRQ for LCD DMA
  Input: ads7846 - fix up the pendown GPIO setup on Nokia 770
  Input: ads7846 - restore half-duplex support

 arch/arm/mach-omap1/board-nokia770.c |   2 +-
 drivers/input/touchscreen/ads7846.c  | 171 ++++++++++++++++++++++++++-
 drivers/video/fbdev/omap/lcd_dma.c   |   4 +-
 3 files changed, 171 insertions(+), 6 deletions(-)

-- 
2.39.2


^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH 1/3] fbdev: omap: use threaded IRQ for LCD DMA
  2025-01-02 18:19 [PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770 Aaro Koskinen
@ 2025-01-02 18:19 ` Aaro Koskinen
  2025-01-02 21:31   ` Linus Walleij
  2025-01-02 18:19 ` [PATCH 2/3] Input: ads7846 - fix up the pendown GPIO setup on Nokia 770 Aaro Koskinen
                   ` (2 subsequent siblings)
  3 siblings, 1 reply; 12+ messages in thread
From: Aaro Koskinen @ 2025-01-02 18:19 UTC (permalink / raw)
  To: Dmitry Torokhov, Helge Deller, Janusz Krzysztofik, Tony Lindgren,
	Linus Walleij, linux-fbdev, linux-omap, linux-input
  Cc: linux-kernel, Aaro Koskinen

When using touchscreen and framebuffer, Nokia 770 crashes easily with:

    BUG: scheduling while atomic: irq/144-ads7846/82/0x00010000
    Modules linked in: usb_f_ecm g_ether usb_f_rndis u_ether libcomposite configfs omap_udc ohci_omap ohci_hcd
    CPU: 0 UID: 0 PID: 82 Comm: irq/144-ads7846 Not tainted 6.12.7-770 #2
    Hardware name: Nokia 770
    Call trace:
     unwind_backtrace from show_stack+0x10/0x14
     show_stack from dump_stack_lvl+0x54/0x5c
     dump_stack_lvl from __schedule_bug+0x50/0x70
     __schedule_bug from __schedule+0x4d4/0x5bc
     __schedule from schedule+0x34/0xa0
     schedule from schedule_preempt_disabled+0xc/0x10
     schedule_preempt_disabled from __mutex_lock.constprop.0+0x218/0x3b4
     __mutex_lock.constprop.0 from clk_prepare_lock+0x38/0xe4
     clk_prepare_lock from clk_set_rate+0x18/0x154
     clk_set_rate from sossi_read_data+0x4c/0x168
     sossi_read_data from hwa742_read_reg+0x5c/0x8c
     hwa742_read_reg from send_frame_handler+0xfc/0x300
     send_frame_handler from process_pending_requests+0x74/0xd0
     process_pending_requests from lcd_dma_irq_handler+0x50/0x74
     lcd_dma_irq_handler from __handle_irq_event_percpu+0x44/0x130
     __handle_irq_event_percpu from handle_irq_event+0x28/0x68
     handle_irq_event from handle_level_irq+0x9c/0x170
     handle_level_irq from generic_handle_domain_irq+0x2c/0x3c
     generic_handle_domain_irq from omap1_handle_irq+0x40/0x8c
     omap1_handle_irq from generic_handle_arch_irq+0x28/0x3c
     generic_handle_arch_irq from call_with_stack+0x1c/0x24
     call_with_stack from __irq_svc+0x94/0xa8
    Exception stack(0xc5255da0 to 0xc5255de8)
    5da0: 00000001 c22fc620 00000000 00000000 c08384a8 c106fc00 00000000 c240c248
    5dc0: c113a600 c3f6ec30 00000001 00000000 c22fc620 c5255df0 c22fc620 c0279a94
    5de0: 60000013 ffffffff
     __irq_svc from clk_prepare_lock+0x4c/0xe4
     clk_prepare_lock from clk_get_rate+0x10/0x74
     clk_get_rate from uwire_setup_transfer+0x40/0x180
     uwire_setup_transfer from spi_bitbang_transfer_one+0x2c/0x9c
     spi_bitbang_transfer_one from spi_transfer_one_message+0x2d0/0x664
     spi_transfer_one_message from __spi_pump_transfer_message+0x29c/0x498
     __spi_pump_transfer_message from __spi_sync+0x1f8/0x2e8
     __spi_sync from spi_sync+0x24/0x40
     spi_sync from ads7846_halfd_read_state+0x5c/0x1c0
     ads7846_halfd_read_state from ads7846_irq+0x58/0x348
     ads7846_irq from irq_thread_fn+0x1c/0x78
     irq_thread_fn from irq_thread+0x120/0x228
     irq_thread from kthread+0xc8/0xe8
     kthread from ret_from_fork+0x14/0x28

As a quick fix, switch to a threaded IRQ which provides a stable system.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
---
 drivers/video/fbdev/omap/lcd_dma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/omap/lcd_dma.c b/drivers/video/fbdev/omap/lcd_dma.c
index f85817635a8c..0da23c57e475 100644
--- a/drivers/video/fbdev/omap/lcd_dma.c
+++ b/drivers/video/fbdev/omap/lcd_dma.c
@@ -432,8 +432,8 @@ static int __init omap_init_lcd_dma(void)
 
 	spin_lock_init(&lcd_dma.lock);
 
-	r = request_irq(INT_DMA_LCD, lcd_dma_irq_handler, 0,
-			"LCD DMA", NULL);
+	r = request_threaded_irq(INT_DMA_LCD, NULL, lcd_dma_irq_handler,
+				 IRQF_ONESHOT, "LCD DMA", NULL);
 	if (r != 0)
 		pr_err("unable to request IRQ for LCD DMA (error %d)\n", r);
 
-- 
2.39.2


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* Re: [PATCH 1/3] fbdev: omap: use threaded IRQ for LCD DMA
  2025-01-02 18:19 ` [PATCH 1/3] fbdev: omap: use threaded IRQ for LCD DMA Aaro Koskinen
@ 2025-01-02 21:31   ` Linus Walleij
  2025-01-08 23:40     ` Helge Deller
  0 siblings, 1 reply; 12+ messages in thread
From: Linus Walleij @ 2025-01-02 21:31 UTC (permalink / raw)
  To: Aaro Koskinen
  Cc: Dmitry Torokhov, Helge Deller, Janusz Krzysztofik, Tony Lindgren,
	linux-fbdev, linux-omap, linux-input, linux-kernel

On Thu, Jan 2, 2025 at 7:20 PM Aaro Koskinen <aaro.koskinen@iki.fi> wrote:

> When using touchscreen and framebuffer, Nokia 770 crashes easily with:
>
>     BUG: scheduling while atomic: irq/144-ads7846/82/0x00010000
>     Modules linked in: usb_f_ecm g_ether usb_f_rndis u_ether libcomposite configfs omap_udc ohci_omap ohci_hcd
>     CPU: 0 UID: 0 PID: 82 Comm: irq/144-ads7846 Not tainted 6.12.7-770 #2
>     Hardware name: Nokia 770
>     Call trace:
>      unwind_backtrace from show_stack+0x10/0x14
>      show_stack from dump_stack_lvl+0x54/0x5c
>      dump_stack_lvl from __schedule_bug+0x50/0x70
>      __schedule_bug from __schedule+0x4d4/0x5bc
>      __schedule from schedule+0x34/0xa0
>      schedule from schedule_preempt_disabled+0xc/0x10
>      schedule_preempt_disabled from __mutex_lock.constprop.0+0x218/0x3b4
>      __mutex_lock.constprop.0 from clk_prepare_lock+0x38/0xe4
>      clk_prepare_lock from clk_set_rate+0x18/0x154
>      clk_set_rate from sossi_read_data+0x4c/0x168
>      sossi_read_data from hwa742_read_reg+0x5c/0x8c
>      hwa742_read_reg from send_frame_handler+0xfc/0x300
>      send_frame_handler from process_pending_requests+0x74/0xd0
>      process_pending_requests from lcd_dma_irq_handler+0x50/0x74
>      lcd_dma_irq_handler from __handle_irq_event_percpu+0x44/0x130
>      __handle_irq_event_percpu from handle_irq_event+0x28/0x68
>      handle_irq_event from handle_level_irq+0x9c/0x170
>      handle_level_irq from generic_handle_domain_irq+0x2c/0x3c
>      generic_handle_domain_irq from omap1_handle_irq+0x40/0x8c
>      omap1_handle_irq from generic_handle_arch_irq+0x28/0x3c
>      generic_handle_arch_irq from call_with_stack+0x1c/0x24
>      call_with_stack from __irq_svc+0x94/0xa8
>     Exception stack(0xc5255da0 to 0xc5255de8)
>     5da0: 00000001 c22fc620 00000000 00000000 c08384a8 c106fc00 00000000 c240c248
>     5dc0: c113a600 c3f6ec30 00000001 00000000 c22fc620 c5255df0 c22fc620 c0279a94
>     5de0: 60000013 ffffffff
>      __irq_svc from clk_prepare_lock+0x4c/0xe4
>      clk_prepare_lock from clk_get_rate+0x10/0x74
>      clk_get_rate from uwire_setup_transfer+0x40/0x180
>      uwire_setup_transfer from spi_bitbang_transfer_one+0x2c/0x9c
>      spi_bitbang_transfer_one from spi_transfer_one_message+0x2d0/0x664
>      spi_transfer_one_message from __spi_pump_transfer_message+0x29c/0x498
>      __spi_pump_transfer_message from __spi_sync+0x1f8/0x2e8
>      __spi_sync from spi_sync+0x24/0x40
>      spi_sync from ads7846_halfd_read_state+0x5c/0x1c0
>      ads7846_halfd_read_state from ads7846_irq+0x58/0x348
>      ads7846_irq from irq_thread_fn+0x1c/0x78
>      irq_thread_fn from irq_thread+0x120/0x228
>      irq_thread from kthread+0xc8/0xe8
>      kthread from ret_from_fork+0x14/0x28
>
> As a quick fix, switch to a threaded IRQ which provides a stable system.
>
> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 1/3] fbdev: omap: use threaded IRQ for LCD DMA
  2025-01-02 21:31   ` Linus Walleij
@ 2025-01-08 23:40     ` Helge Deller
  0 siblings, 0 replies; 12+ messages in thread
From: Helge Deller @ 2025-01-08 23:40 UTC (permalink / raw)
  To: Linus Walleij, Aaro Koskinen
  Cc: Dmitry Torokhov, Janusz Krzysztofik, Tony Lindgren, linux-fbdev,
	linux-omap, linux-input, linux-kernel

On 1/2/25 22:31, Linus Walleij wrote:
> On Thu, Jan 2, 2025 at 7:20 PM Aaro Koskinen <aaro.koskinen@iki.fi> wrote:
>
>> When using touchscreen and framebuffer, Nokia 770 crashes easily with:
>>
>>      BUG: scheduling while atomic: irq/144-ads7846/82/0x00010000
>>      Modules linked in: usb_f_ecm g_ether usb_f_rndis u_ether libcomposite configfs omap_udc ohci_omap ohci_hcd
>>      CPU: 0 UID: 0 PID: 82 Comm: irq/144-ads7846 Not tainted 6.12.7-770 #2
>>      Hardware name: Nokia 770
>>      Call trace:
>>       unwind_backtrace from show_stack+0x10/0x14
>>       show_stack from dump_stack_lvl+0x54/0x5c
>>       dump_stack_lvl from __schedule_bug+0x50/0x70
>>       __schedule_bug from __schedule+0x4d4/0x5bc
>>       __schedule from schedule+0x34/0xa0
>>       schedule from schedule_preempt_disabled+0xc/0x10
>>       schedule_preempt_disabled from __mutex_lock.constprop.0+0x218/0x3b4
>>       __mutex_lock.constprop.0 from clk_prepare_lock+0x38/0xe4
>>       clk_prepare_lock from clk_set_rate+0x18/0x154
>>       clk_set_rate from sossi_read_data+0x4c/0x168
>>       sossi_read_data from hwa742_read_reg+0x5c/0x8c
>>       hwa742_read_reg from send_frame_handler+0xfc/0x300
>>       send_frame_handler from process_pending_requests+0x74/0xd0
>>       process_pending_requests from lcd_dma_irq_handler+0x50/0x74
>>       lcd_dma_irq_handler from __handle_irq_event_percpu+0x44/0x130
>>       __handle_irq_event_percpu from handle_irq_event+0x28/0x68
>>       handle_irq_event from handle_level_irq+0x9c/0x170
>>       handle_level_irq from generic_handle_domain_irq+0x2c/0x3c
>>       generic_handle_domain_irq from omap1_handle_irq+0x40/0x8c
>>       omap1_handle_irq from generic_handle_arch_irq+0x28/0x3c
>>       generic_handle_arch_irq from call_with_stack+0x1c/0x24
>>       call_with_stack from __irq_svc+0x94/0xa8
>>      Exception stack(0xc5255da0 to 0xc5255de8)
>>      5da0: 00000001 c22fc620 00000000 00000000 c08384a8 c106fc00 00000000 c240c248
>>      5dc0: c113a600 c3f6ec30 00000001 00000000 c22fc620 c5255df0 c22fc620 c0279a94
>>      5de0: 60000013 ffffffff
>>       __irq_svc from clk_prepare_lock+0x4c/0xe4
>>       clk_prepare_lock from clk_get_rate+0x10/0x74
>>       clk_get_rate from uwire_setup_transfer+0x40/0x180
>>       uwire_setup_transfer from spi_bitbang_transfer_one+0x2c/0x9c
>>       spi_bitbang_transfer_one from spi_transfer_one_message+0x2d0/0x664
>>       spi_transfer_one_message from __spi_pump_transfer_message+0x29c/0x498
>>       __spi_pump_transfer_message from __spi_sync+0x1f8/0x2e8
>>       __spi_sync from spi_sync+0x24/0x40
>>       spi_sync from ads7846_halfd_read_state+0x5c/0x1c0
>>       ads7846_halfd_read_state from ads7846_irq+0x58/0x348
>>       ads7846_irq from irq_thread_fn+0x1c/0x78
>>       irq_thread_fn from irq_thread+0x120/0x228
>>       irq_thread from kthread+0xc8/0xe8
>>       kthread from ret_from_fork+0x14/0x28
>>
>> As a quick fix, switch to a threaded IRQ which provides a stable system.
>>
>> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
>
> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

applied to linux-fbdev git tree.

Helge

^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH 2/3] Input: ads7846 - fix up the pendown GPIO setup on Nokia 770
  2025-01-02 18:19 [PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770 Aaro Koskinen
  2025-01-02 18:19 ` [PATCH 1/3] fbdev: omap: use threaded IRQ for LCD DMA Aaro Koskinen
@ 2025-01-02 18:19 ` Aaro Koskinen
  2025-01-02 21:32   ` Linus Walleij
  2025-01-02 18:19 ` [PATCH 3/3] Input: ads7846 - restore half-duplex support Aaro Koskinen
  2025-01-02 21:35 ` [PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770 Linus Walleij
  3 siblings, 1 reply; 12+ messages in thread
From: Aaro Koskinen @ 2025-01-02 18:19 UTC (permalink / raw)
  To: Dmitry Torokhov, Helge Deller, Janusz Krzysztofik, Tony Lindgren,
	Linus Walleij, linux-fbdev, linux-omap, linux-input
  Cc: linux-kernel, Aaro Koskinen

The GPIO is set up as an IRQ, so request it as non-exclusive. Otherwise the
probe fails on Nokia 770 with:

    ads7846 spi2.0: failed to request pendown GPIO
    ads7846: probe of spi2.0 failed with error -16

Also the polarity is wrong. Fix it.

Fixes: 767d83361aaa ("Input: ads7846 - Convert to use software nodes")
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
---
 arch/arm/mach-omap1/board-nokia770.c | 2 +-
 drivers/input/touchscreen/ads7846.c  | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c
index 3312ef93355d..9153b1a81577 100644
--- a/arch/arm/mach-omap1/board-nokia770.c
+++ b/arch/arm/mach-omap1/board-nokia770.c
@@ -287,7 +287,7 @@ static struct gpiod_lookup_table nokia770_irq_gpio_table = {
 	.table = {
 		/* GPIO used by SPI device 1 */
 		GPIO_LOOKUP("gpio-0-15", 15, "ads7846_irq",
-			    GPIO_ACTIVE_HIGH),
+			    GPIO_ACTIVE_LOW),
 		/* GPIO used for retu IRQ */
 		GPIO_LOOKUP("gpio-48-63", 15, "retu_irq",
 			    GPIO_ACTIVE_HIGH),
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 066dc04003fa..54280ecca0a7 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -1021,7 +1021,8 @@ static int ads7846_setup_pendown(struct spi_device *spi,
 	if (pdata->get_pendown_state) {
 		ts->get_pendown_state = pdata->get_pendown_state;
 	} else {
-		ts->gpio_pendown = gpiod_get(&spi->dev, "pendown", GPIOD_IN);
+		ts->gpio_pendown = gpiod_get(&spi->dev, "pendown", GPIOD_IN |
+					     GPIOD_FLAGS_BIT_NONEXCLUSIVE);
 		if (IS_ERR(ts->gpio_pendown)) {
 			dev_err(&spi->dev, "failed to request pendown GPIO\n");
 			return PTR_ERR(ts->gpio_pendown);
-- 
2.39.2


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* Re: [PATCH 2/3] Input: ads7846 - fix up the pendown GPIO setup on Nokia 770
  2025-01-02 18:19 ` [PATCH 2/3] Input: ads7846 - fix up the pendown GPIO setup on Nokia 770 Aaro Koskinen
@ 2025-01-02 21:32   ` Linus Walleij
  2025-01-06  7:02     ` Dmitry Torokhov
  0 siblings, 1 reply; 12+ messages in thread
From: Linus Walleij @ 2025-01-02 21:32 UTC (permalink / raw)
  To: Aaro Koskinen
  Cc: Dmitry Torokhov, Helge Deller, Janusz Krzysztofik, Tony Lindgren,
	linux-fbdev, linux-omap, linux-input, linux-kernel

On Thu, Jan 2, 2025 at 7:20 PM Aaro Koskinen <aaro.koskinen@iki.fi> wrote:

> The GPIO is set up as an IRQ, so request it as non-exclusive. Otherwise the
> probe fails on Nokia 770 with:
>
>     ads7846 spi2.0: failed to request pendown GPIO
>     ads7846: probe of spi2.0 failed with error -16
>
> Also the polarity is wrong. Fix it.
>
> Fixes: 767d83361aaa ("Input: ads7846 - Convert to use software nodes")
> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 2/3] Input: ads7846 - fix up the pendown GPIO setup on Nokia 770
  2025-01-02 21:32   ` Linus Walleij
@ 2025-01-06  7:02     ` Dmitry Torokhov
  2025-01-14 12:28       ` Linus Walleij
  0 siblings, 1 reply; 12+ messages in thread
From: Dmitry Torokhov @ 2025-01-06  7:02 UTC (permalink / raw)
  To: Linus Walleij
  Cc: Aaro Koskinen, Helge Deller, Janusz Krzysztofik, Tony Lindgren,
	linux-fbdev, linux-omap, linux-input, linux-kernel

On Thu, Jan 02, 2025 at 10:32:00PM +0100, Linus Walleij wrote:
> On Thu, Jan 2, 2025 at 7:20 PM Aaro Koskinen <aaro.koskinen@iki.fi> wrote:
> 
> > The GPIO is set up as an IRQ, so request it as non-exclusive. Otherwise the
> > probe fails on Nokia 770 with:
> >
> >     ads7846 spi2.0: failed to request pendown GPIO
> >     ads7846: probe of spi2.0 failed with error -16
> >
> > Also the polarity is wrong. Fix it.
> >
> > Fixes: 767d83361aaa ("Input: ads7846 - Convert to use software nodes")
> > Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
> 
> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Do we need to have this knowledge in the driver or can it be handled
in GPIO subsystem or affected board support? Requesting a GPIO with "in"
direction when it is also an interrupt source should be pretty common.

Thanks.

-- 
Dmitry

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 2/3] Input: ads7846 - fix up the pendown GPIO setup on Nokia 770
  2025-01-06  7:02     ` Dmitry Torokhov
@ 2025-01-14 12:28       ` Linus Walleij
  2025-01-14 21:51         ` Dmitry Torokhov
  0 siblings, 1 reply; 12+ messages in thread
From: Linus Walleij @ 2025-01-14 12:28 UTC (permalink / raw)
  To: Dmitry Torokhov
  Cc: Aaro Koskinen, Helge Deller, Janusz Krzysztofik, Tony Lindgren,
	linux-fbdev, linux-omap, linux-input, linux-kernel

On Mon, Jan 6, 2025 at 8:02 AM Dmitry Torokhov
<dmitry.torokhov@gmail.com> wrote:
> On Thu, Jan 02, 2025 at 10:32:00PM +0100, Linus Walleij wrote:
> > On Thu, Jan 2, 2025 at 7:20 PM Aaro Koskinen <aaro.koskinen@iki.fi> wrote:
> >
> > > The GPIO is set up as an IRQ, so request it as non-exclusive. Otherwise the
> > > probe fails on Nokia 770 with:
> > >
> > >     ads7846 spi2.0: failed to request pendown GPIO
> > >     ads7846: probe of spi2.0 failed with error -16
> > >
> > > Also the polarity is wrong. Fix it.
> > >
> > > Fixes: 767d83361aaa ("Input: ads7846 - Convert to use software nodes")
> > > Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
> >
> > Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
>
> Do we need to have this knowledge in the driver or can it be handled
> in GPIO subsystem or affected board support? Requesting a GPIO with "in"
> direction when it is also an interrupt source should be pretty common.

Hm I don't know exactly the question here but I try to answer
anyway :)

The patch makes the boardfile describe the polarity but the
boardfile (or device tree) cannot define directions, consumers
must specify this. The main reason is that actual users exist that
switch the direction of GPIOs at runtime so this has been designed
as a (runtime) consumer duty.

As for GPIOD_FLAGS_BIT_NONEXCLUSIVE, this enables the
GPIO subsystem to read the GPIO while the irqchip subsystem
can also handle the same GPIO line as an interrupt source, so
it's not exclusive to either subsystem.

Yours,
Linus Walleij

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 2/3] Input: ads7846 - fix up the pendown GPIO setup on Nokia 770
  2025-01-14 12:28       ` Linus Walleij
@ 2025-01-14 21:51         ` Dmitry Torokhov
  0 siblings, 0 replies; 12+ messages in thread
From: Dmitry Torokhov @ 2025-01-14 21:51 UTC (permalink / raw)
  To: Linus Walleij
  Cc: Aaro Koskinen, Helge Deller, Janusz Krzysztofik, Tony Lindgren,
	linux-fbdev, linux-omap, linux-input, linux-kernel

On Tue, Jan 14, 2025 at 01:28:32PM +0100, Linus Walleij wrote:
> On Mon, Jan 6, 2025 at 8:02 AM Dmitry Torokhov
> <dmitry.torokhov@gmail.com> wrote:
> > On Thu, Jan 02, 2025 at 10:32:00PM +0100, Linus Walleij wrote:
> > > On Thu, Jan 2, 2025 at 7:20 PM Aaro Koskinen <aaro.koskinen@iki.fi> wrote:
> > >
> > > > The GPIO is set up as an IRQ, so request it as non-exclusive. Otherwise the
> > > > probe fails on Nokia 770 with:
> > > >
> > > >     ads7846 spi2.0: failed to request pendown GPIO
> > > >     ads7846: probe of spi2.0 failed with error -16
> > > >
> > > > Also the polarity is wrong. Fix it.
> > > >
> > > > Fixes: 767d83361aaa ("Input: ads7846 - Convert to use software nodes")
> > > > Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
> > >
> > > Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> >
> > Do we need to have this knowledge in the driver or can it be handled
> > in GPIO subsystem or affected board support? Requesting a GPIO with "in"
> > direction when it is also an interrupt source should be pretty common.
> 
> Hm I don't know exactly the question here but I try to answer
> anyway :)
> 
> The patch makes the boardfile describe the polarity but the
> boardfile (or device tree) cannot define directions, consumers
> must specify this. The main reason is that actual users exist that
> switch the direction of GPIOs at runtime so this has been designed
> as a (runtime) consumer duty.
> 
> As for GPIOD_FLAGS_BIT_NONEXCLUSIVE, this enables the
> GPIO subsystem to read the GPIO while the irqchip subsystem
> can also handle the same GPIO line as an interrupt source, so
> it's not exclusive to either subsystem.

But isn't this something that should work by default, without specifying
any additional flags? I understand that using GPIO as an interrupt
source and at the same time as an output line is not possible (without
reconfiguration "on the fly"), but reading state if an input GPIO line
that is also an interrupt should be OK? I am pretty sure there are
systems/boards/arches that allow this.

This is my objection - we have to add a flag to a driver that is used on
multiple systems to tweak behavior of one particular board.

Thanks.

-- 
Dmitry

^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH 3/3] Input: ads7846 - restore half-duplex support
  2025-01-02 18:19 [PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770 Aaro Koskinen
  2025-01-02 18:19 ` [PATCH 1/3] fbdev: omap: use threaded IRQ for LCD DMA Aaro Koskinen
  2025-01-02 18:19 ` [PATCH 2/3] Input: ads7846 - fix up the pendown GPIO setup on Nokia 770 Aaro Koskinen
@ 2025-01-02 18:19 ` Aaro Koskinen
  2025-01-02 21:35 ` [PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770 Linus Walleij
  3 siblings, 0 replies; 12+ messages in thread
From: Aaro Koskinen @ 2025-01-02 18:19 UTC (permalink / raw)
  To: Dmitry Torokhov, Helge Deller, Janusz Krzysztofik, Tony Lindgren,
	Linus Walleij, linux-fbdev, linux-omap, linux-input
  Cc: linux-kernel, Aaro Koskinen

On some boards, the SPI controller is limited to half-duplex and the driver
is just spamming "ads7846 spi2.0: spi_sync --> -22". Restore half-duplex
support using multiple SPI transfers.

Fixes: 9c9509717b53 ("Input: ads7846 - convert to full duplex")
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
---
 drivers/input/touchscreen/ads7846.c | 168 +++++++++++++++++++++++++++-
 1 file changed, 166 insertions(+), 2 deletions(-)

diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 54280ecca0a7..276591c682ad 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -134,6 +134,9 @@ struct ads7846 {
 	bool			disabled;	/* P: lock */
 	bool			suspended;	/* P: lock */
 
+	int			(*setup_spi_msg)(struct ads7846 *ts,
+					const struct ads7846_platform_data *pdata);
+	void			(*read_state)(struct ads7846 *ts);
 	int			(*filter)(void *data, int data_idx, int *val);
 	void			*filter_data;
 	int			(*get_pendown_state)(void);
@@ -797,6 +800,22 @@ static int ads7846_filter(struct ads7846 *ts)
 	return 0;
 }
 
+static int ads7846_filter_one(struct ads7846 *ts, unsigned int cmd_idx)
+{
+	struct ads7846_packet *packet = ts->packet;
+	struct ads7846_buf_layout *l = &packet->l[cmd_idx];
+	int action, val;
+
+	val = ads7846_get_value(&packet->rx[l->offset + l->count - 1]);
+	action = ts->filter(ts->filter_data, cmd_idx, &val);
+	if (action == ADS7846_FILTER_REPEAT)
+		return -EAGAIN;
+	else if (action != ADS7846_FILTER_OK)
+		return -EIO;
+	ads7846_set_cmd_val(ts, cmd_idx, val);
+	return 0;
+}
+
 static void ads7846_wait_for_hsync(struct ads7846 *ts)
 {
 	if (ts->wait_for_sync) {
@@ -819,6 +838,45 @@ static void ads7846_wait_for_hsync(struct ads7846 *ts)
 		cpu_relax();
 }
 
+static void ads7846_halfd_read_state(struct ads7846 *ts)
+{
+	struct ads7846_packet *packet = ts->packet;
+	int msg_idx = 0;
+
+	packet->ignore = false;
+
+	while (msg_idx < ts->msg_count) {
+		int error;
+
+		ads7846_wait_for_hsync(ts);
+
+		error = spi_sync(ts->spi, &ts->msg[msg_idx]);
+		if (error) {
+			dev_err_ratelimited(&ts->spi->dev, "spi_sync --> %d\n",
+					    error);
+			packet->ignore = true;
+			return;
+		}
+
+		/*
+		 * Last message is power down request, no need to convert
+		 * or filter the value.
+		 */
+		if (msg_idx == ts->msg_count - 1)
+			break;
+
+		error = ads7846_filter_one(ts, msg_idx);
+		if (error == -EAGAIN) {
+			continue;
+		} else if (error) {
+			packet->ignore = true;
+			msg_idx = ts->msg_count - 1;
+		} else {
+			msg_idx++;
+		}
+	}
+}
+
 static void ads7846_read_state(struct ads7846 *ts)
 {
 	struct ads7846_packet *packet = ts->packet;
@@ -947,7 +1005,7 @@ static irqreturn_t ads7846_irq(int irq, void *handle)
 	while (!ts->stopped && get_pendown_state(ts)) {
 
 		/* pen is down, continue with the measurement */
-		ads7846_read_state(ts);
+		ts->read_state(ts);
 
 		if (!ts->stopped)
 			ads7846_report_state(ts);
@@ -1035,6 +1093,102 @@ static int ads7846_setup_pendown(struct spi_device *spi,
 	return 0;
 }
 
+/*
+ * Set up the transfers to read touchscreen state; this assumes we
+ * use formula #2 for pressure, not #3.
+ */
+static int ads7846_halfd_spi_msg(struct ads7846 *ts,
+				 const struct ads7846_platform_data *pdata)
+{
+	struct spi_message *m = ts->msg;
+	struct spi_transfer *x = ts->xfer;
+	struct ads7846_packet *packet = ts->packet;
+	int vref = pdata->keep_vref_on;
+	unsigned int offset = 0;
+	unsigned int cmd_idx, b;
+	size_t size = 0;
+
+	if (pdata->settle_delay_usecs)
+		packet->count = 2;
+	else
+		packet->count = 1;
+
+	if (ts->model == 7846)
+		packet->cmds = 5; /* x, y, z1, z2, pwdown */
+	else
+		packet->cmds = 3; /* x, y, pwdown */
+
+	for (cmd_idx = 0; cmd_idx < packet->cmds; cmd_idx++) {
+		struct ads7846_buf_layout *l = &packet->l[cmd_idx];
+		unsigned int max_count;
+
+		if (cmd_idx == packet->cmds - 1) {
+			cmd_idx = ADS7846_PWDOWN;
+			max_count = 1;
+		} else {
+			max_count = packet->count;
+		}
+
+		l->offset = offset;
+		offset += max_count;
+		l->count = max_count;
+		l->skip = 0;
+		size += sizeof(*packet->rx) * max_count;
+	}
+
+	/* We use two transfers per command. */
+	if (ARRAY_SIZE(ts->xfer) < offset * 2)
+		return -ENOMEM;
+
+	packet->rx = devm_kzalloc(&ts->spi->dev, size, GFP_KERNEL);
+	if (!packet->rx)
+		return -ENOMEM;
+
+	if (ts->model == 7873) {
+		/*
+		 * The AD7873 is almost identical to the ADS7846
+		 * keep VREF off during differential/ratiometric
+		 * conversion modes.
+		 */
+		ts->model = 7846;
+		vref = 0;
+	}
+
+	ts->msg_count = 0;
+
+	for (cmd_idx = 0; cmd_idx < packet->cmds; cmd_idx++) {
+		struct ads7846_buf_layout *l = &packet->l[cmd_idx];
+		u8 cmd;
+
+		ts->msg_count++;
+		spi_message_init(m);
+		m->context = ts;
+
+		if (cmd_idx == packet->cmds - 1)
+			cmd_idx = ADS7846_PWDOWN;
+
+		cmd = ads7846_get_cmd(cmd_idx, vref);
+
+		for (b = 0; b < l->count; b++) {
+			packet->rx[l->offset + b].cmd = cmd;
+			x->tx_buf = &packet->rx[l->offset + b].cmd;
+			x->len = 1;
+			spi_message_add_tail(x, m);
+			x++;
+			x->rx_buf = &packet->rx[l->offset + b].data;
+			x->len = 2;
+			if (b < l->count - 1 && l->count > 1) {
+				x->delay.value = pdata->settle_delay_usecs;
+				x->delay.unit = SPI_DELAY_UNIT_USECS;
+			}
+			spi_message_add_tail(x, m);
+			x++;
+		}
+		m++;
+	}
+	return 0;
+}
+
 /*
  * Set up the transfers to read touchscreen state; this assumes we
  * use formula #2 for pressure, not #3.
@@ -1249,6 +1403,14 @@ static int ads7846_probe(struct spi_device *spi)
 	if (!ts)
 		return -ENOMEM;
 
+	if (spi->controller->flags & SPI_CONTROLLER_HALF_DUPLEX) {
+		ts->setup_spi_msg = ads7846_halfd_spi_msg;
+		ts->read_state    = ads7846_halfd_read_state;
+	} else {
+		ts->setup_spi_msg = ads7846_setup_spi_msg;
+		ts->read_state    = ads7846_read_state;
+	}
+
 	packet = devm_kzalloc(dev, sizeof(struct ads7846_packet), GFP_KERNEL);
 	if (!packet)
 		return -ENOMEM;
@@ -1343,7 +1505,9 @@ static int ads7846_probe(struct spi_device *spi)
 		ts->core_prop.swap_x_y = true;
 	}
 
-	ads7846_setup_spi_msg(ts, pdata);
+	err = ts->setup_spi_msg(ts, pdata);
+	if (err)
+		return err;
 
 	ts->reg = devm_regulator_get(dev, "vcc");
 	if (IS_ERR(ts->reg)) {
-- 
2.39.2


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* Re: [PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770
  2025-01-02 18:19 [PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770 Aaro Koskinen
                   ` (2 preceding siblings ...)
  2025-01-02 18:19 ` [PATCH 3/3] Input: ads7846 - restore half-duplex support Aaro Koskinen
@ 2025-01-02 21:35 ` Linus Walleij
  2025-01-03  0:39   ` Aaro Koskinen
  3 siblings, 1 reply; 12+ messages in thread
From: Linus Walleij @ 2025-01-02 21:35 UTC (permalink / raw)
  To: Aaro Koskinen
  Cc: Dmitry Torokhov, Helge Deller, Janusz Krzysztofik, Tony Lindgren,
	linux-fbdev, linux-omap, linux-input, linux-kernel

On Thu, Jan 2, 2025 at 7:20 PM Aaro Koskinen <aaro.koskinen@iki.fi> wrote:

> This series restores the ads7846 touchscreen functionality on Nokia 770
> (and maybe on some other older boards using half-duplex SPI). While the
> performance might not be optimal, it's again possible to control the device
> using the screen, for testing/development purposes at least.

I'm pretty impressed that you're able to keep the device running!

I actually have one of these devices. Is there some documentation
somewhere of how to e.g. mount a serial port and get it flashed
with the latest stuff needed to boot a mainline kernel?

Yours,
Linus Walleij

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770
  2025-01-02 21:35 ` [PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770 Linus Walleij
@ 2025-01-03  0:39   ` Aaro Koskinen
  0 siblings, 0 replies; 12+ messages in thread
From: Aaro Koskinen @ 2025-01-03  0:39 UTC (permalink / raw)
  To: Linus Walleij
  Cc: Dmitry Torokhov, Helge Deller, Janusz Krzysztofik, Tony Lindgren,
	linux-fbdev, linux-omap, linux-input, linux-kernel

Hi,

On Thu, Jan 02, 2025 at 10:35:11PM +0100, Linus Walleij wrote:
> On Thu, Jan 2, 2025 at 7:20 PM Aaro Koskinen <aaro.koskinen@iki.fi> wrote:
> 
> > This series restores the ads7846 touchscreen functionality on Nokia 770
> > (and maybe on some other older boards using half-duplex SPI). While the
> > performance might not be optimal, it's again possible to control the device
> > using the screen, for testing/development purposes at least.
> 
> I'm pretty impressed that you're able to keep the device running!
>
> I actually have one of these devices. Is there some documentation
> somewhere of how to e.g. mount a serial port and get it flashed
> with the latest stuff needed to boot a mainline kernel?

For the serial port/console (3V TTL level) there are test pads visible
next to the battery slot, but I haven't used those for a long time as
the basic boot and display has been working OK quite a while and you can
usually see crash messages etc. on display (and if the screen is blank I
usually bisect rather than set up the serial console). UART pin locations
should be found by Googling, if needed I can dig out the details.

To boot a kernel you don't need any flashing; I like this on these
OMAP devices. You can just do "one-shot" kernel boot over USB with
https://github.com/pali/0xFFFF (also the original Nokia "flasher" tool
should work for that, if you can run old Linux/Mac binaries.)

For mainline kernel testing I'm using just: 0xFFFF -m zImage -l -b
with USB cable connected from a host. (Start 0xFFFF and connect USB cable,
then power on the device and it should load & boot the kernel.)

However, the 770 bootloader accepts only <= 2MB images. I'm using a small
initial XZ compressed image that has only kernel, busybox and kexec,
and then mounts the MMC using a script and loads & boots the "big kernel"
and full userspace. This has been a pretty robust method for years.

Below is my current working 6.12 config for 770 for the initial minimal
kernel. You should be able to try booting it w/0xFFFF and at least see the
messages on the framebuffer, finally maybe a panic due to a missing init.
If that works, then it's up adding small initramfs doing whatever stuff
is needed...

This was a pretty vague instruction, but if you are trying
and facing problems booting mainline Linux on Nokia OMAP devices, I'm
available for questions as I've been doing this for a while.

A.

...

#
# Automatically generated file; DO NOT EDIT.
# Linux/arm 6.12.7 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="arm-linux-gnueabi-gcc (GCC) 12.4.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=120400
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=24301
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=24301
CONFIG_LLD_VERSION=0
CONFIG_RUSTC_VERSION=0
CONFIG_RUSTC_LLVM_VERSION=0
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=0
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION="-770_tiny"
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_LZMA is not set
CONFIG_KERNEL_XZ=y
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
# CONFIG_SYSVIPC is not set
# CONFIG_WATCH_QUEUE is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_USELIB is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# end of IRQ subsystem

CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
CONFIG_GENERIC_CLOCKEVENTS=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
# end of Timers subsystem

CONFIG_HAVE_EBPF_JIT=y

#
# BPF subsystem
#
# CONFIG_BPF_SYSCALL is not set
# end of BPF subsystem

CONFIG_PREEMPT_NONE_BUILD=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_TINY_SRCU=y
# end of RCU Subsystem

# CONFIG_IKCONFIG is not set
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=17
CONFIG_GENERIC_SCHED_CLOCK=y

#
# Scheduler features
#
# end of Scheduler features

CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_GCC10_NO_ARRAY_BOUNDS=y
CONFIG_CC_NO_ARRAY_BOUNDS=y
CONFIG_GCC_NO_STRINGOP_OVERFLOW=y
CONFIG_CC_NO_STRINGOP_OVERFLOW=y
# CONFIG_CGROUPS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_INITRAMFS_FORCE is not set
# CONFIG_RD_GZIP is not set
# CONFIG_RD_BZIP2 is not set
# CONFIG_RD_LZMA is not set
CONFIG_RD_XZ=y
# CONFIG_RD_LZO is not set
# CONFIG_RD_LZ4 is not set
# CONFIG_RD_ZSTD is not set
# CONFIG_BOOT_CONFIG is not set
CONFIG_INITRAMFS_PRESERVE_MTIME=y
# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_HAVE_LD_DEAD_CODE_DATA_ELIMINATION=y
# CONFIG_LD_DEAD_CODE_DATA_ELIMINATION is not set
CONFIG_LD_ORPHAN_WARN=y
CONFIG_LD_ORPHAN_WARN_LEVEL="warn"
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
CONFIG_EXPERT=y
# CONFIG_MULTIUSER is not set
# CONFIG_SGETMASK_SYSCALL is not set
# CONFIG_SYSFS_SYSCALL is not set
# CONFIG_FHANDLE is not set
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
# CONFIG_BASE_SMALL is not set
# CONFIG_FUTEX is not set
# CONFIG_EPOLL is not set
# CONFIG_SIGNALFD is not set
# CONFIG_TIMERFD is not set
# CONFIG_EVENTFD is not set
# CONFIG_SHMEM is not set
# CONFIG_AIO is not set
# CONFIG_IO_URING is not set
# CONFIG_ADVISE_SYSCALLS is not set
# CONFIG_MEMBARRIER is not set
# CONFIG_KCMP is not set
# CONFIG_RSEQ is not set
# CONFIG_CACHESTAT_SYSCALL is not set
# CONFIG_PC104 is not set
# CONFIG_KALLSYMS is not set
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_USE_VMALLOC=y

#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# end of Kernel Performance Events And Counters

# CONFIG_PROFILING is not set

#
# Kexec and crash features
#
CONFIG_KEXEC_CORE=y
CONFIG_KEXEC=y
# CONFIG_CRASH_DUMP is not set
# end of Kexec and crash features
# end of General setup

CONFIG_ARM=y
CONFIG_ARM_HAS_GROUP_RELOCS=y
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
CONFIG_HAVE_PROC_CPU=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_ARM_PATCH_PHYS_VIRT=y
CONFIG_PHYS_OFFSET=0x10000000
CONFIG_GENERIC_BUG=y
CONFIG_PGTABLE_LEVELS=2

#
# System Type
#
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_BITS_MAX=16
# CONFIG_ARCH_MULTIPLATFORM is not set

#
# Platform selection
#

#
# CPU Core family selection
#
# CONFIG_ARCH_MULTI_V4 is not set
# CONFIG_ARCH_MULTI_V4T is not set
CONFIG_ARCH_MULTI_V5=y
CONFIG_ARCH_MULTI_V4_V5=y
# CONFIG_ARCH_MULTI_V6 is not set
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_MULTI_CPU_AUTO=y
# end of Platform selection

# CONFIG_MACH_ASM9260 is not set
# CONFIG_ARCH_ASPEED is not set
# CONFIG_ARCH_AT91 is not set
# CONFIG_ARCH_DAVINCI is not set
# CONFIG_ARCH_HISI is not set
# CONFIG_ARCH_MXC is not set
# CONFIG_ARCH_LPC32XX is not set
# CONFIG_ARCH_MMP is not set
# CONFIG_ARCH_MV78XX0 is not set
# CONFIG_ARCH_MVEBU is not set
# CONFIG_ARCH_MXS is not set
# CONFIG_ARCH_NOMADIK is not set
# CONFIG_ARCH_NPCM is not set
CONFIG_ARCH_OMAP1=y

#
# TI OMAP1 specific features
#

#
# OMAP Core Type
#
CONFIG_ARCH_OMAP16XX=y
CONFIG_ARCH_OMAP=y

#
# OMAP Feature Selections
#
CONFIG_OMAP_MUX=y
# CONFIG_OMAP_MUX_DEBUG is not set
CONFIG_OMAP_MUX_WARNINGS=y
CONFIG_OMAP_32K_TIMER=y
# CONFIG_OMAP_MPU_TIMER is not set
CONFIG_OMAP_SERIAL_WAKE=y
# CONFIG_OMAP_RESET_CLOCKS is not set
CONFIG_ARCH_OMAP_OTG=y

#
# OMAP Board Type
#
# CONFIG_MACH_OMAP_OSK is not set
CONFIG_MACH_NOKIA770=y
# end of TI OMAP1 specific features

# CONFIG_ARCH_ORION5X is not set
# CONFIG_ARCH_PXA is not set
# CONFIG_PLAT_SPEAR is not set
# CONFIG_ARCH_SUNXI is not set
# CONFIG_ARCH_VERSATILE is not set
# CONFIG_ARCH_INTEGRATOR is not set
# CONFIG_ARCH_REALVIEW is not set
# CONFIG_ARCH_WM8505 is not set

#
# Processor Type
#
CONFIG_CPU_ARM926T=y
CONFIG_CPU_THUMB_CAPABLE=y
CONFIG_CPU_32v5=y
CONFIG_CPU_ABRT_EV5TJ=y
CONFIG_CPU_PABRT_LEGACY=y
CONFIG_CPU_CACHE_VIVT=y
CONFIG_CPU_COPY_V4WB=y
CONFIG_CPU_TLB_V4WBI=y
CONFIG_CPU_CP15=y
CONFIG_CPU_CP15_MMU=y
CONFIG_CPU_USE_DOMAINS=y

#
# Processor Features
#
# CONFIG_ARM_THUMB is not set
CONFIG_CPU_LITTLE_ENDIAN=y
# CONFIG_CPU_BIG_ENDIAN is not set
# CONFIG_CPU_ICACHE_DISABLE is not set
# CONFIG_CPU_DCACHE_DISABLE is not set
# CONFIG_CPU_DCACHE_WRITETHROUGH is not set
# CONFIG_CPU_CACHE_ROUND_ROBIN is not set
CONFIG_NEED_KUSER_HELPERS=y
CONFIG_KUSER_HELPERS=y
CONFIG_ARM_L1_CACHE_SHIFT=5
# end of System Type

#
# Bus support
#
# end of Bus support

#
# Kernel Features
#
CONFIG_IRQSTACKS=y
CONFIG_VMSPLIT_3G=y
# CONFIG_VMSPLIT_3G_OPT is not set
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_HZ_FIXED=0
CONFIG_HZ_100=y
# CONFIG_HZ_200 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_500 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
CONFIG_SCHED_HRTICK=y
CONFIG_AEABI=y
# CONFIG_OABI_COMPAT is not set
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
# CONFIG_HIGHMEM is not set
CONFIG_ARM_PAN=y
CONFIG_CPU_SW_DOMAIN_PAN=y
CONFIG_ARCH_FORCE_MAX_ORDER=11
CONFIG_ALIGNMENT_TRAP=y
# CONFIG_UACCESS_WITH_MEMCPY is not set
# CONFIG_PARAVIRT is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
CONFIG_CC_HAVE_STACKPROTECTOR_TLS=y
# end of Kernel Features

#
# Boot options
#
CONFIG_USE_OF=y
CONFIG_ARCH_WANT_FLAT_DTB_INSTALL=y
CONFIG_ATAGS=y
# CONFIG_DEPRECATED_PARAM_STRUCT is not set
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
# CONFIG_ARM_APPENDED_DTB is not set
CONFIG_CMDLINE="mem=64M console=tty"
# CONFIG_CMDLINE_FROM_BOOTLOADER is not set
# CONFIG_CMDLINE_EXTEND is not set
CONFIG_CMDLINE_FORCE=y
CONFIG_ARCH_SUPPORTS_KEXEC=y
CONFIG_ATAGS_PROC=y
CONFIG_ARCH_SUPPORTS_CRASH_DUMP=y
CONFIG_ARCH_DEFAULT_CRASH_DUMP=y
# CONFIG_AUTO_ZRELADDR is not set
# end of Boot options

#
# CPU Power Management
#

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
# end of CPU Frequency scaling

#
# CPU Idle
#
# CONFIG_CPU_IDLE is not set
# end of CPU Idle
# end of CPU Power Management

#
# Floating point emulation
#

#
# At least one emulation must be selected
#
# CONFIG_VFP is not set
# end of Floating point emulation

#
# Power management options
#
# CONFIG_SUSPEND is not set
# CONFIG_PM is not set
# CONFIG_APM_EMULATION is not set
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
# end of Power management options

CONFIG_AS_VFP_VMRS_FPINST=y
CONFIG_CPU_MITIGATIONS=y
CONFIG_ARCH_HAS_DMA_OPS=y

#
# General architecture-dependent options
#
# CONFIG_KPROBES is not set
# CONFIG_JUMP_LABEL is not set
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GENERIC_IDLE_POLL_SETUP=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_KEEPINITRD=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_HAS_CPU_FINALIZE_INIT=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_MMU_LAZY_TLB_REFCOUNT=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
# CONFIG_SECCOMP is not set
CONFIG_HAVE_ARCH_STACKLEAK=y
CONFIG_HAVE_STACKPROTECTOR=y
# CONFIG_STACKPROTECTOR is not set
CONFIG_LTO_NONE=y
CONFIG_ARCH_SUPPORTS_CFI_CLANG=y
CONFIG_HAVE_CONTEXT_TRACKING_USER=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=8
CONFIG_HAVE_PAGE_SIZE_4KB=y
CONFIG_PAGE_SIZE_4KB=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_PAGE_SHIFT=12
CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
# CONFIG_STRICT_KERNEL_RWX is not set
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_HAVE_ARCH_PFN_VALID=y

#
# GCOV-based kernel profiling
#
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_GCC_PLUGINS=y
# CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set
CONFIG_FUNCTION_ALIGNMENT=0
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
# CONFIG_MODULES is not set
CONFIG_BLOCK=y
CONFIG_BLOCK_LEGACY_AUTOLOAD=y
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
CONFIG_BLK_DEV_WRITE_MOUNTED=y
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_WBT is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_BSD_DISKLABEL is not set
# CONFIG_MINIX_SUBPARTITION is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_LDM_PARTITION is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_KARMA_PARTITION is not set
# CONFIG_EFI_PARTITION is not set
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set
# end of Partition Types

#
# IO Schedulers
#
# CONFIG_MQ_IOSCHED_DEADLINE is not set
# CONFIG_MQ_IOSCHED_KYBER is not set
# CONFIG_IOSCHED_BFQ is not set
# end of IO Schedulers

CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_ELF_FDPIC is not set
CONFIG_ELFCORE=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_ARCH_HAS_BINFMT_FLAT=y
# CONFIG_BINFMT_FLAT is not set
CONFIG_BINFMT_FLAT_ARGVP_ENVP_ON_STACK=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_COREDUMP is not set
# end of Executable file formats

#
# Memory Management options
#
# CONFIG_SWAP is not set

#
# Slab allocator options
#
CONFIG_SLUB=y
# CONFIG_SLUB_TINY is not set
CONFIG_SLAB_MERGE_DEFAULT=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# CONFIG_SLAB_BUCKETS is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_RANDOM_KMALLOC_CACHES is not set
# end of Slab allocator options

# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_ARCH_KEEP_MEMBLOCK=y
# CONFIG_COMPACTION is not set
# CONFIG_PAGE_REPORTING is not set
CONFIG_PCP_BATCH_SCALE_MAX=5
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CMA is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_ARCH_HAS_CPU_CACHE_ALIASING=y
CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_PERCPU_STATS is not set

#
# GUP_TEST needs to have DEBUG_FS enabled
#
# CONFIG_DMAPOOL_TEST is not set
# CONFIG_MEMFD_CREATE is not set
# CONFIG_USERFAULTFD is not set
# CONFIG_LRU_GEN is not set
CONFIG_ARCH_SUPPORTS_PER_VMA_LOCK=y
CONFIG_LOCK_MM_AND_FIND_VMA=y

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options

# CONFIG_NET is not set

#
# Device Drivers
#
CONFIG_HAVE_PCI=y
CONFIG_GENERIC_PCI_IOMAP=y
# CONFIG_PCI is not set
# CONFIG_PCCARD is not set

#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
# CONFIG_DEVTMPFS_MOUNT is not set
# CONFIG_DEVTMPFS_SAFE is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
# CONFIG_FW_LOADER is not set
# end of Firmware loader

# CONFIG_ALLOW_DEV_COREDUMP is not set
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
CONFIG_GENERIC_CPU_DEVICES=y
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_REGMAP=y
CONFIG_REGMAP_IRQ=y
# CONFIG_FW_DEVLINK_SYNC_STATE_TIMEOUT is not set
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_MOXTET is not set
# CONFIG_VEXPRESS_CONFIG is not set
# CONFIG_MHI_BUS is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices

#
# Cache Drivers
#
# end of Cache Drivers

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
# CONFIG_ARM_SCMI_PROTOCOL is not set
# end of ARM System Control and Management Interface Protocol

# CONFIG_FIRMWARE_MEMMAP is not set
# CONFIG_FW_CFG_SYSFS is not set
# CONFIG_GOOGLE_FIRMWARE is not set
# CONFIG_IMX_SCMI_MISC_DRV is not set

#
# Qualcomm firmware drivers
#
# end of Qualcomm firmware drivers

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
# CONFIG_MTD is not set
CONFIG_DTC=y
CONFIG_OF=y
# CONFIG_OF_UNITTEST is not set
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_KOBJ=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_IRQ=y
CONFIG_OF_RESERVED_MEM=y
# CONFIG_OF_OVERLAY is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
# CONFIG_BLK_DEV is not set

#
# NVME Support
#
# CONFIG_NVME_FC is not set
# end of NVME Support

#
# Misc devices
#
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_RPMB is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
# CONFIG_XILINX_SDFEC is not set
# CONFIG_OPEN_DICE is not set
# CONFIG_VCPU_STALL_DETECTOR is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_AT25 is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_EEPROM_EE1004 is not set
# end of EEPROM support

#
# Texas Instruments shared transport line discipline
#
# end of Texas Instruments shared transport line discipline

# CONFIG_SENSORS_LIS3_SPI is not set
# CONFIG_SENSORS_LIS3_I2C is not set
# CONFIG_ALTERA_STAPL is not set
# CONFIG_ECHO is not set
# CONFIG_PVPANIC is not set
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
# end of SCSI device support

# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set

#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
# CONFIG_UNIX98_PTYS is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_LEGACY_TIOCSTI=y
CONFIG_LDISC_AUTOLOAD=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
# CONFIG_SERIAL_8250_16550A_VARIANTS is not set
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
CONFIG_SERIAL_8250_FSL=y
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_RT288X is not set
# CONFIG_SERIAL_OF_PLATFORM is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_EARLYCON_SEMIHOST is not set
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_SIFIVE is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_CONEXANT_DIGICOLOR is not set
# CONFIG_SERIAL_ST_ASC is not set
# CONFIG_SERIAL_SPRD is not set
# end of Serial drivers

CONFIG_SERIAL_MCTRL_GPIO=y
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NULL_TTY is not set
# CONFIG_HVC_DCC is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_TTY_PRINTK is not set
# CONFIG_VIRTIO_CONSOLE is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
CONFIG_DEVMEM=y
CONFIG_DEVPORT=y
# CONFIG_TCG_TPM is not set
# CONFIG_XILLYBUS is not set
# end of Character devices

#
# I2C support
#
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y

#
# I2C Hardware Bus support
#

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
CONFIG_I2C_CBUS_GPIO=y
# CONFIG_I2C_DESIGNWARE_CORE is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_OMAP is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_RK3X is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_TAOS_EVM is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_VIRTIO is not set
# end of I2C Hardware Bus support

# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# end of I2C support

# CONFIG_I3C is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
# CONFIG_SPI_MEM is not set

#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_AXI_SPI_ENGINE is not set
CONFIG_SPI_BITBANG=y
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_CADENCE_QUADSPI is not set
# CONFIG_SPI_DESIGNWARE is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_FSL_SPI is not set
# CONFIG_SPI_MICROCHIP_CORE is not set
# CONFIG_SPI_MICROCHIP_CORE_QSPI is not set
# CONFIG_SPI_OC_TINY is not set
CONFIG_SPI_OMAP_UWIRE=y
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_SIFIVE is not set
# CONFIG_SPI_MXIC is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_AMD is not set

#
# SPI Multiplexer support
#
# CONFIG_SPI_MUX is not set

#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_SPI_SLAVE is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
# CONFIG_PPS is not set

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK_OPTIONAL=y

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# end of PTP clock support

# CONFIG_PINCTRL is not set
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_OF_GPIO=y
CONFIG_GPIOLIB_IRQCHIP=y
# CONFIG_DEBUG_GPIO is not set
# CONFIG_GPIO_SYSFS is not set
# CONFIG_GPIO_CDEV is not set

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_74XX_MMIO is not set
# CONFIG_GPIO_ALTERA is not set
# CONFIG_GPIO_CADENCE is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_FTGPIO010 is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_GRGPIO is not set
# CONFIG_GPIO_HLWD is not set
# CONFIG_GPIO_MB86S7X is not set
# CONFIG_GPIO_MPC8XXX is not set
CONFIG_GPIO_OMAP=y
# CONFIG_GPIO_SIFIVE is not set
# CONFIG_GPIO_XILINX is not set
# CONFIG_GPIO_ZEVIO is not set
# CONFIG_GPIO_AMD_FCH is not set
# end of Memory mapped GPIO drivers

#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADNP is not set
# CONFIG_GPIO_FXL6408 is not set
# CONFIG_GPIO_DS4520 is not set
# CONFIG_GPIO_GW_PLD is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCA9570 is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_TPIC2810 is not set
# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
# CONFIG_HTC_EGPIO is not set
# end of MFD GPIO expanders

#
# SPI GPIO expanders
#
# CONFIG_GPIO_74X164 is not set
# CONFIG_GPIO_MAX3191X is not set
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_PISOSR is not set
# CONFIG_GPIO_XRA1403 is not set
# end of SPI GPIO expanders

#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_LATCH is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_SIM is not set
# end of Virtual GPIO drivers

#
# GPIO Debugging utilities
#
# CONFIG_GPIO_VIRTUSER is not set
# end of GPIO Debugging utilities

# CONFIG_W1 is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SEQUENCING is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
# CONFIG_WATCHDOG_SYSFS is not set
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set

#
# Watchdog Pretimeout Governors
#
# CONFIG_WATCHDOG_PRETIMEOUT_GOV is not set

#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_GPIO_WATCHDOG is not set
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_FTWDT010_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_OMAP_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
CONFIG_RETU_WATCHDOG=y
# CONFIG_MEN_A21_WDT is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_ADP5585 is not set
# CONFIG_MFD_ACT8945A is not set
# CONFIG_MFD_AS3711 is not set
# CONFIG_MFD_SMPRO is not set
# CONFIG_MFD_AS3722 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_ATMEL_FLEXCOM is not set
# CONFIG_MFD_ATMEL_HLCDC is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
# CONFIG_MFD_AXP20X_I2C is not set
# CONFIG_MFD_CS42L43_I2C is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_MFD_MAX5970 is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_GATEWORKS_GSC is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_MP2629 is not set
# CONFIG_MFD_HI6421_PMIC is not set
# CONFIG_MFD_IQS62X is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_88PM886_PMIC is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77541 is not set
# CONFIG_MFD_MAX77620 is not set
# CONFIG_MFD_MAX77650 is not set
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77714 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6360 is not set
# CONFIG_MFD_MT6370 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_MFD_OCELOT is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_CPCAP is not set
# CONFIG_MFD_NTXEC is not set
CONFIG_MFD_RETU=y
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_PM8XXX is not set
# CONFIG_MFD_SY7636A is not set
# CONFIG_MFD_RT4831 is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RT5120 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_RK8XX_I2C is not set
# CONFIG_MFD_RK8XX_SPI is not set
# CONFIG_MFD_RN5T618 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_STMPE is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_TI_LMU is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TI_LP87565 is not set
# CONFIG_MFD_TPS65218 is not set
# CONFIG_MFD_TPS65219 is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_MFD_TPS6594_I2C is not set
# CONFIG_MFD_TPS6594_SPI is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_TQMX86 is not set
# CONFIG_MFD_LOCHNAGAR is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_ROHM_BD718XX is not set
# CONFIG_MFD_ROHM_BD71828 is not set
# CONFIG_MFD_ROHM_BD957XMUF is not set
# CONFIG_MFD_ROHM_BD96801 is not set
# CONFIG_MFD_STPMIC1 is not set
# CONFIG_MFD_STMFX is not set
# CONFIG_MFD_ATC260X_I2C is not set
# CONFIG_MFD_QCOM_PM8008 is not set
# CONFIG_MFD_CS40L50_I2C is not set
# CONFIG_MFD_CS40L50_SPI is not set
# CONFIG_MFD_INTEL_M10_BMC_SPI is not set
# CONFIG_MFD_RSMU_I2C is not set
# CONFIG_MFD_RSMU_SPI is not set
# end of Multifunction device drivers

# CONFIG_REGULATOR is not set
# CONFIG_RC_CORE is not set

#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support

# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
CONFIG_VIDEO=y
# CONFIG_AUXDISPLAY is not set
# CONFIG_DRM is not set

#
# Frame buffer Devices
#
CONFIG_FB=y
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_FB_SSD1307 is not set
CONFIG_FB_OMAP=y
CONFIG_FB_OMAP_LCDC_EXTERNAL=y
CONFIG_FB_OMAP_LCDC_HWA742=y
# CONFIG_FB_OMAP_MANUAL_UPDATE is not set
CONFIG_FB_OMAP_LCD_MIPID=y
# CONFIG_FB_OMAP_DMA_TUNE is not set
CONFIG_FB_CORE=y
CONFIG_FB_NOTIFY=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_DEVICE=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_IOMEM_FOPS=y
CONFIG_FB_IOMEM_HELPERS=y
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
# CONFIG_LCD_CLASS_DEVICE is not set
# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
# end of Backlight & LCD device support

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=30
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION is not set
# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
# CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set
# end of Console display driver support

CONFIG_LOGO=y
CONFIG_LOGO_LINUX_MONO=y
# CONFIG_LOGO_LINUX_VGA16 is not set
# CONFIG_LOGO_LINUX_CLUT224 is not set
# end of Graphics support

# CONFIG_SOUND is not set
# CONFIG_HID_SUPPORT is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
CONFIG_MMC=y
# CONFIG_PWRSEQ_EMMC is not set
# CONFIG_PWRSEQ_SIMPLE is not set
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_MINORS=8
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_SDHCI is not set
CONFIG_MMC_OMAP=y
# CONFIG_MMC_SPI is not set
# CONFIG_MMC_DW is not set
# CONFIG_MMC_USDHI6ROL0 is not set
# CONFIG_MMC_CQHCI is not set
# CONFIG_MMC_HSQ is not set
# CONFIG_MMC_MTK is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_RTC_LIB=y
# CONFIG_RTC_CLASS is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_OF=y
# CONFIG_ALTERA_MSGDMA is not set
# CONFIG_DW_AXI_DMAC is not set
# CONFIG_FSL_EDMA is not set
# CONFIG_FSL_QDMA is not set
# CONFIG_INTEL_IDMA64 is not set
# CONFIG_NBPFAXI_DMA is not set
# CONFIG_XILINX_DMA is not set
# CONFIG_XILINX_XDMA is not set
# CONFIG_XILINX_ZYNQMP_DPDMA is not set
# CONFIG_AMD_QDMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set
# CONFIG_DW_DMAC is not set
# CONFIG_SF_PDMA is not set
# CONFIG_TI_CPPI41 is not set
# CONFIG_TI_EDMA is not set
CONFIG_DMA_OMAP=y

#
# DMA Clients
#
# CONFIG_ASYNC_TX_DMA is not set
# CONFIG_DMATEST is not set

#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_DMABUF_HEAPS is not set
# end of DMABUF options

# CONFIG_UIO is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
# CONFIG_VIRTIO_MENU is not set
# CONFIG_VHOST_MENU is not set

#
# Microsoft Hyper-V guest support
#
# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
# CONFIG_GOLDFISH is not set
# CONFIG_CHROME_PLATFORMS is not set
# CONFIG_CZNIC_PLATFORMS is not set
# CONFIG_MELLANOX_PLATFORM is not set
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y

#
# Clock driver for ARM Reference designs
#
# CONFIG_CLK_ICST is not set
# CONFIG_CLK_SP810 is not set
# end of Clock driver for ARM Reference designs

# CONFIG_LMK04832 is not set
# CONFIG_COMMON_CLK_MAX9485 is not set
# CONFIG_COMMON_CLK_SI5341 is not set
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI514 is not set
# CONFIG_COMMON_CLK_SI544 is not set
# CONFIG_COMMON_CLK_SI570 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CDCE925 is not set
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_COMMON_CLK_AXI_CLKGEN is not set
# CONFIG_COMMON_CLK_RS9_PCIE is not set
# CONFIG_COMMON_CLK_SI521XX is not set
# CONFIG_COMMON_CLK_VC3 is not set
# CONFIG_COMMON_CLK_VC5 is not set
# CONFIG_COMMON_CLK_VC7 is not set
# CONFIG_COMMON_CLK_FIXED_MMIO is not set
# CONFIG_XILINX_VCU is not set
# CONFIG_COMMON_CLK_XLNX_CLKWZRD is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
CONFIG_TIMER_OF=y
CONFIG_TIMER_PROBE=y
CONFIG_CLKSRC_MMIO=y
CONFIG_OMAP_DM_TIMER=y
# CONFIG_ARM_TIMER_SP804 is not set
# CONFIG_MICROCHIP_PIT64B is not set
# end of Clock Source drivers

# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers

# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers

#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
# CONFIG_QUICC_ENGINE is not set
# end of NXP/Freescale QorIQ SoC drivers

#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers

#
# i.MX SoC drivers
#
# end of i.MX SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# CONFIG_LITEX_SOC_CONTROLLER is not set
# end of Enable LiteX SoC Builder specific drivers

# CONFIG_WPCM450_SOC is not set

#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers

# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

#
# PM Domains
#

#
# Amlogic PM Domains
#
# end of Amlogic PM Domains

#
# Broadcom PM Domains
#
# end of Broadcom PM Domains

#
# i.MX PM Domains
#
# end of i.MX PM Domains

#
# Qualcomm PM Domains
#
# end of Qualcomm PM Domains
# end of PM Domains

# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_PWM is not set

#
# IRQ chip support
#
CONFIG_IRQCHIP=y
# CONFIG_AL_FIC is not set
# CONFIG_LAN966X_OIC is not set
# CONFIG_XILINX_INTC is not set
# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms

# CONFIG_PHY_CADENCE_TORRENT is not set
# CONFIG_PHY_CADENCE_DPHY is not set
# CONFIG_PHY_CADENCE_DPHY_RX is not set
# CONFIG_PHY_CADENCE_SALVO is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# end of PHY Subsystem

# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
# CONFIG_RAS is not set

#
# Android
#
# CONFIG_ANDROID_BINDER_IPC is not set
# end of Android

# CONFIG_DAX is not set
# CONFIG_NVMEM is not set

#
# HW tracing support
#
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
# end of HW tracing support

# CONFIG_FPGA is not set
# CONFIG_FSI is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers

#
# File systems
#
CONFIG_VALIDATE_FS_PARSER=y
CONFIG_FS_IOMAP=y
CONFIG_BUFFER_HEAD=y
CONFIG_EXT2_FS=y
# CONFIG_EXT2_FS_XATTR is not set
# CONFIG_EXT3_FS is not set
# CONFIG_EXT4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_BCACHEFS_FS is not set
# CONFIG_EXPORTFS_BLOCK_OPS is not set
# CONFIG_FILE_LOCKING is not set
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY_USER is not set
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# end of Caches

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS3_FS is not set
# CONFIG_NTFS_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_SYSCTL=y
# CONFIG_PROC_PAGE_MONITOR is not set
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
# CONFIG_CONFIGFS_FS is not set
# end of Pseudo filesystems

# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NLS is not set
# CONFIG_UNICODE is not set
# end of File systems

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_PROC_MEM_ALWAYS_FORCE=y
# CONFIG_PROC_MEM_FORCE_PTRACE is not set
# CONFIG_PROC_MEM_NO_FORCE is not set
# CONFIG_SECURITYFS is not set
# CONFIG_HARDENED_USERCOPY is not set
# CONFIG_FORTIFY_SOURCE is not set
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="yama,loadpin,safesetid,integrity"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_BARE=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
CONFIG_INIT_STACK_NONE=y
# CONFIG_INIT_STACK_ALL_PATTERN is not set
# CONFIG_INIT_STACK_ALL_ZERO is not set
# CONFIG_GCC_PLUGIN_STACKLEAK is not set
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization

#
# Hardening of kernel data structures
#
# CONFIG_LIST_HARDENED is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# end of Hardening of kernel data structures

CONFIG_RANDSTRUCT_NONE=y
# CONFIG_RANDSTRUCT_FULL is not set
# CONFIG_RANDSTRUCT_PERFORMANCE is not set
# end of Kernel hardening options
# end of Security options

# CONFIG_CRYPTO is not set

#
# Library routines
#
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
# CONFIG_CORDIC is not set
# CONFIG_PRIME_NUMBERS is not set
CONFIG_RATIONAL=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
# CONFIG_CRYPTO_LIB_CHACHA is not set
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=9
# CONFIG_CRYPTO_LIB_POLY1305 is not set
# end of Crypto library routines

# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC64_ROCKSOFT is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC64 is not set
# CONFIG_CRC4 is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_XZ_DEC=y
# CONFIG_XZ_DEC_X86 is not set
# CONFIG_XZ_DEC_POWERPC is not set
CONFIG_XZ_DEC_ARM=y
# CONFIG_XZ_DEC_ARMTHUMB is not set
# CONFIG_XZ_DEC_ARM64 is not set
# CONFIG_XZ_DEC_SPARC is not set
# CONFIG_XZ_DEC_RISCV is not set
# CONFIG_XZ_DEC_MICROLZMA is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_XZ=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS_HELPERS=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_HAS_DMA_WRITE_COMBINE=y
CONFIG_DMA_DECLARE_COHERENT=y
CONFIG_ARCH_HAS_SETUP_DMA_OPS=y
CONFIG_ARCH_HAS_TEARDOWN_DMA_OPS=y
CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE=y
CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU=y
CONFIG_DMA_NEED_SYNC=y
CONFIG_DMA_NONCOHERENT_MMAP=y
CONFIG_ARCH_HAS_DMA_ALLOC=y
# CONFIG_DMA_API_DEBUG is not set
CONFIG_FORCE_NR_CPUS=y
CONFIG_GENERIC_ATOMIC64=y
# CONFIG_IRQ_POLL is not set
CONFIG_LIBFDT=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_ARCH_STACKWALK=y
CONFIG_SBITMAP=y
# CONFIG_LWQ_TEST is not set
# end of Library routines

CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED=y

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
# CONFIG_PRINTK_CALLER is not set
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_DYNAMIC_DEBUG_CORE is not set
CONFIG_SYMBOLIC_ERRNAME=y
# CONFIG_DEBUG_BUGVERBOSE is not set
# end of printk and dmesg options

CONFIG_DEBUG_KERNEL=y
# CONFIG_DEBUG_MISC is not set

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
CONFIG_AS_HAS_NON_CONST_ULEB128=y
# CONFIG_DEBUG_INFO_NONE is not set
CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
# CONFIG_DEBUG_INFO_DWARF4 is not set
# CONFIG_DEBUG_INFO_DWARF5 is not set
# CONFIG_DEBUG_INFO_REDUCED is not set
CONFIG_DEBUG_INFO_COMPRESSED_NONE=y
# CONFIG_DEBUG_INFO_COMPRESSED_ZLIB is not set
# CONFIG_DEBUG_INFO_SPLIT is not set
# CONFIG_GDB_SCRIPTS is not set
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_HEADERS_INSTALL is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# CONFIG_VMLINUX_MAP is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE=""
# CONFIG_DEBUG_FS is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN=y
# CONFIG_UBSAN is not set
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments

#
# Networking Debugging
#
# end of Networking Debugging

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_PAGE_POISONING is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
# CONFIG_DEBUG_VM is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_MEM_ALLOC_PROFILING is not set
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# CONFIG_KASAN is not set
CONFIG_HAVE_ARCH_KFENCE=y
# CONFIG_KFENCE is not set
# end of Memory Debugging

# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Oops, Lockups and Hangs
#
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SOFTLOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_WQ_WATCHDOG is not set
# CONFIG_WQ_CPU_INTENSIVE_REPORT is not set
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
# CONFIG_SCHEDSTATS is not set
# end of Scheduler Debugging

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_RWSEMS is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_SCF_TORTURE_TEST is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

# CONFIG_DEBUG_IRQFLAGS is not set
# CONFIG_STACKTRACE is not set
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set

#
# Debug kernel data structures
#
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PLIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_MAPLE_TREE is not set
# end of Debug kernel data structures

#
# RCU Debugging
#
# CONFIG_RCU_SCALE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_REF_SCALE_TEST is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_LATENCYTOP is not set
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_SAMPLES is not set
# CONFIG_STRICT_DEVMEM is not set

#
# arm Debugging
#
# CONFIG_ARM_PTDUMP_DEBUGFS is not set
# CONFIG_ARM_DEBUG_WX is not set
# CONFIG_UNWINDER_FRAME_POINTER is not set
CONFIG_UNWINDER_ARM=y
CONFIG_ARM_UNWIND=y
# CONFIG_BACKTRACE_VERBOSE is not set
# CONFIG_DEBUG_USER is not set
# CONFIG_DEBUG_LL is not set
CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
# CONFIG_CORESIGHT is not set
# end of arm Debugging

#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_KCOV is not set
# CONFIG_RUNTIME_TESTING_MENU is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# end of Kernel Testing and Coverage

#
# Rust hacking
#
# end of Rust hacking
# end of Kernel hacking


^ permalink raw reply	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2025-01-14 21:51 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-01-02 18:19 [PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770 Aaro Koskinen
2025-01-02 18:19 ` [PATCH 1/3] fbdev: omap: use threaded IRQ for LCD DMA Aaro Koskinen
2025-01-02 21:31   ` Linus Walleij
2025-01-08 23:40     ` Helge Deller
2025-01-02 18:19 ` [PATCH 2/3] Input: ads7846 - fix up the pendown GPIO setup on Nokia 770 Aaro Koskinen
2025-01-02 21:32   ` Linus Walleij
2025-01-06  7:02     ` Dmitry Torokhov
2025-01-14 12:28       ` Linus Walleij
2025-01-14 21:51         ` Dmitry Torokhov
2025-01-02 18:19 ` [PATCH 3/3] Input: ads7846 - restore half-duplex support Aaro Koskinen
2025-01-02 21:35 ` [PATCH 0/3] Input/omap1: fix touchscreen functionality on Nokia 770 Linus Walleij
2025-01-03  0:39   ` Aaro Koskinen

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