PD#163025: fix pwq null pointer
commit 44117a1d17 upstream.
setserial changes the IRQ via uart_set_info(). It invokes
uart_shutdown() which free the current used IRQ and clear
TTY_PORT_INITIALIZED. It will then update the IRQ number and invoke
uart_startup() before returning to the caller leaving
TTY_PORT_INITIALIZED cleared.
The next open will crash with
| list_add double add: new=ffffffff839fcc98, prev=ffffffff839fcc98, next=ffffffff839fcc98.
since the close from the IOCTL won't free the IRQ (and clean the list)
due to the TTY_PORT_INITIALIZED check in uart_shutdown().
There is same pattern in uart_do_autoconfig() and I *think* it also
needs to set TTY_PORT_INITIALIZED there.
Is there a reason why uart_startup() does not set the flag by itself
after the IRQ has been acquired (since it is cleared in uart_shutdown)?
Change-Id: I8c86b0aeb36986195276d94abd68917a08758a3e
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
PD#163025: fix pwq null pointer
commit b027e2298b upstream.
There can be a race, if receive_buf call comes before
tty initialization completes in n_tty_open and tty->disc_data
may be NULL.
CPU0 CPU1
---- ----
000|n_tty_receive_buf_common() n_tty_open()
-001|n_tty_receive_buf2() tty_ldisc_open.isra.3()
-002|tty_ldisc_receive_buf(inline) tty_ldisc_setup()
Using ldisc semaphore lock in tty_init_dev till disc_data
initializes completely.
Change-Id: I8a9d58a674e0267c2eda3c6bf58c7510e86e3b33
Signed-off-by: Gaurav Kohli <gkohli@codeaurora.org>
Reviewed-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
PD#161171: optimize di buf optimization
1.optimize di buf queue operation
2.add di task semaphone check
Change-Id: Ia60d1ebd57d839fb1783b1257d82300469038415
Signed-off-by: Dezhi Kong <dezhi.kong@amlogic.com>
PD#160789: sdio: optimizing the selection of sdio tuning sampling points
[problem] When all sampling points can be sampled correctly,
select 0 points as the best sampling point.M8 platform is normal,
but some S905 platform is not suitable.
[resolved] The GXL platfoarm selects the intermediate
point of all sampling points as the best sampling point
Change-Id: I59097daa8fe3d99f2f11a3e1347945c8eea4e1c9
Signed-off-by: Long Yu <long.yu@amlogic.com>
PD#163212: clk: low clk mux printk message
make the printk message at debug level
Change-Id: Id7e7864755be4f8809e5c44d5eeea2f6a7c4b5c3
Signed-off-by: Qiufang Dai <qiufang.dai@amlogic.com>
Signed-off-by: Jiyu Yang <jiyu.yang@amlogic.com>
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
PD#161475: ddr : add driver for ddr bandwidth measure
1. change dtsi for related chips;
2. porting driver for each dmc contoller;
3. export sysfs for debug and upper layer.
Change-Id: Iaac6ac671bae26d9bff9c7a480ef44e2b0912b3c
Signed-off-by: tao zeng <tao.zeng@amlogic.com>
PD#159184: cec: add the control of arc line
add audio control interface for switch
Change-Id: I7981451c449435e5974c8321d99fc6c31e66f957
Signed-off-by: hongmin hua <hongmin.hua@amlogic.com>
Signed-off-by: Zhe Wang <Zhe.Wang@amlogic.com>
PD#162769: audio: auge: share buffer only for playback
Change-Id: I5313a52ef493ee699a173370a82657bf27a43008
Signed-off-by: Xing Wang <xing.wang@amlogic.com>
PD#162862: u200: set fb mem_alloc flag for mali test
Change-Id: I129bf5cfb94f957a020cd957b85a1842321df0e0
Signed-off-by: wenbiao zhang <wenbiao.zhang@amlogic.com>
PD#163027: lcd: synchronous lcd driver from linux3.14
1.add the frame rate adaptive to each panel control alone
2.optimize vx1 phy large vswing
3.perfect the unifykey read way to improve efficiency
4.add i2c_pinmux for power sequence
Change-Id: I548591a5f54a9080e2d721b3b944d5bc511728cc
Signed-off-by: Weiming Liu <weiming.liu@amlogic.com>
PD#163116:
1. vfm: increase the receiver size from 16 to 32
2. vpp: put el vframe toggle when omx dropping frame
Change-Id: Iecb0686e08a0bfb66ef259ea5fc32333fbbbd3e4
Signed-off-by: Brian Zhu <brian.zhu@amlogic.com>
PD#160883: hdmitx: fix the zigzag problem in color depth mode
When reset HDMITX_DWC_MC_SWRSTZREQ directly, these pulses may not align.
Therefore, the following steps must be executed.
steps
1.disable video encoder output and controller clocks
2.reset HDMITX_DWC_MC_SWRSTZREQ
3.enable video encoder output and controller clocks
Change-Id: I6cebc299d0a61da878d7c87a131d06f2601b2989
Signed-off-by: Yi Zhou <yi.zhou@amlogic.com>
PD#161244: modify the short address of aiu fifo regs to match g12a.
Change-Id: Idfe935c1710d5a0f091a7796138a56f78fdfe7b4
Signed-off-by: Nanxin Qin <nanxin.qin@amlogic.com>
PD#163124: pinctrl: keep the same GPIO ID after adding GPIOV_0 for G12A
Change-Id: I45b99df3a15e2bf0f7ad34ae8705dc4a509c70a1
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
PD#163038: pinctrl: improve the eth groups for gxl
add "eth_link_led" and "eth_act_led" pin groups to eth function group
Change-Id: I28f434f100be7636ddbc9a5159418d6efb7f027a
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
PD#162464: spicc: support irregular bit-width
some device work at a irregular bit-width for example,
11 bit-width and tx data is {0xa1, 0x62},
the LSB bit order is: 10100001 011 (0xa1 + 3 bits of 0x62)
the MSB bit order is: 01100010 101 (0x62 + 3 bits of 0xa1)
note: all case more than 16 bits will run at 4-byte-per-word though one
byte discarded.
to print the difference between tx and rx if mode[16]=1
Change-Id: Ibdd438c3fe764986c71b77ec2d4fa0db489dd439
Signed-off-by: Sunny Luo <sunny.luo@amlogic.com>
PD#163016: add eye pattern and modify internal phy status
Change-Id: I18e0164646b17b86187fe1fe5c0189c9c2302130
Signed-off-by: Zhuo Wang <zhuo.wang@amlogic.com>
PD#160889: keypad: avoid repetition of reporting power key event
If the adc_keypad and gpio_keypad driver are enabled at the same time,
the system will report two power key event when it resumes, and the
second event will result in the system suspend again. The patch resolves
the bug.
Change-Id: Iea4d9e2bf6632e4603dc9743fce07e5af74d0273
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
PD#162992: pinctrl: add virtual GPIO "GPIOV_0" for g12a
The gpio is used to set the bit PERIPHS_PIN_MUX_2 BIT[17]. Please refer
the following method to use it.
1). set the PERIPHS_PIN_MUX_2 BIT[17] to <1>
mux_en {
groups = "sdio_dummy";
function = "sdio";
}
2). set the PERIPHS_PIN_MUX_2 BIT[17] to <0>
mux_dis {
groups = "GPIOV_0";
function = "gpio_periphs";
}
Change-Id: Ied0e6c71ed1ff8ab9a26cb76ec1508d83a4453d7
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
PD#162858: pinctrl: add new pinconf attrs "output-high" and "output-low"
we can refer the following example to use:
mux {
groups = "GPIOC_0", "GPIOC_1", "GPIOC_2",
"GPIOC_3", "GPIOC_4", "GPIOC_5";
function = "gpio_periphs";
output-high; // or output-low
}
output-high: GPIO_EN_N[pin]=<0> and GPIO_O[pin]=<1>
output-low : GPIO_EN_N[pin]=<0> and GPIO_O[pin]=<0>
Change-Id: I3f8ec1bd1eff7c7d6e7416b608e4c5d6c7b15955
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
PD#159137: clk: meson: axg: fix the od shift of the sys_pll
According to datasheet, the od shift of sys_pll is 16,
fix the typo which introduced at previous commit.
Change-Id: I8d7e36b1178c0ab7f89791964fe4bb216c551d6d
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
PD#162258: spdif out is no audio output
1) fixed pinmux error
2) add mute flag for Pause
Change-Id: Icb60dba86d5b305eedf78b0fd410e0a16800c503
Signed-off-by: Zhe Wang <Zhe.Wang@amlogic.com>
PD#134355: mtd: use sprintf instead of printk in show functions
Remove the unused system attribute in dtb and env.
Change-Id: Ie7f7bda60ac1b192708a6b6fd0dc1c77ca1eb0e0
Signed-off-by: Yi Zeng <yi.zeng@amlogic.com>
PD#162219: hdmitx: add enci clktree
Add enci clktree support for 480i and 576i.
Change-Id: Id7bc3444bd634deb1a52c8faf7f3d2f017d33e73
Signed-off-by: Kaifu Hu <kaifu.hu@amlogic.com>
