February 2023 - Alsa-devel - mailman.alsa-project.org

[PATCH -next] ASoC: codecs: Remove unneeded semicolon
by Yang Li 13 Feb '23

13 Feb '23

./sound/soc/codecs/peb2466.c:1851:2-3: Unneeded semicolon ./sound/soc/codecs/peb2466.c:1887:2-3: Unneeded semicolon Reported-by: Abaci Robot <abaci(a)linux.alibaba.com> Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4045 Signed-off-by: Yang Li <yang.lee(a)linux.alibaba.com> --- sound/soc/codecs/peb2466.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/peb2466.c b/sound/soc/codecs/peb2466.c index 4640b1860312..5dec69be0acb 100644 --- a/sound/soc/codecs/peb2466.c +++ b/sound/soc/codecs/peb2466.c @@ -1848,7 +1848,7 @@ static int peb2466_chip_direction_input(struct gpio_chip *c, unsigned int offset if (offset < 16) { /* SOx_{0,1} */ return -EINVAL; - }; + } ret = peb2466_chip_gpio_offset_to_dir_regmask(offset, &xr_reg, &mask); if (ret) { @@ -1884,7 +1884,7 @@ static int peb2466_chip_direction_output(struct gpio_chip *c, unsigned int offse if (offset < 16) { /* SOx_{0,1} */ return 0; - }; + } ret = peb2466_chip_gpio_offset_to_dir_regmask(offset, &xr_reg, &mask); if (ret) { -- 2.20.1.7.g153144c

3 2

[PATCH] ASoC: ep93xx: ignore 0 Hz sysclk
by Alexander Sverdlin 13 Feb '23

13 Feb '23

Commit 2458adb8f92a ("SoC: simple-card-utils: set 0Hz to sysclk when shutdown") added a call to snd_soc_dai_set_sysclk() with 0 Hz frequency. Being propagated further it causes a division by zero in clk-ep93xx driver: Division by zero in kernel. CPU: 0 PID: 52 Comm: aplay Tainted: G W 6.2.0-rc4-... #1 Hardware name: Generic DT based system unwind_backtrace from show_stack+0x10/0x18 show_stack from dump_stack_lvl+0x28/0x34 dump_stack_lvl from __div0+0x10/0x1c __div0 from Ldiv0+0x8/0x1c Ldiv0 from ep93xx_mux_determine_rate+0x78/0x1d0 ep93xx_mux_determine_rate from clk_core_round_rate_nolock+0x48/0xc8 clk_core_round_rate_nolock from clk_core_set_rate_nolock+0x48/0x160 clk_core_set_rate_nolock from clk_set_rate+0x30/0x8c clk_set_rate from ep93xx_i2s_set_sysclk+0x30/0x6c ep93xx_i2s_set_sysclk from snd_soc_dai_set_sysclk+0x3c/0xa4 snd_soc_dai_set_sysclk from asoc_simple_shutdown+0xb8/0x164 asoc_simple_shutdown from snd_soc_link_shutdown+0x44/0x54 snd_soc_link_shutdown from soc_pcm_clean+0x78/0x180 soc_pcm_clean from soc_pcm_close+0x28/0x40 soc_pcm_close from snd_pcm_release_substream.part.0+0x3c/0x84 snd_pcm_release_substream.part.0 from snd_pcm_release+0x40/0x88 snd_pcm_release from __fput+0x74/0x278 There has been commit f1879d7b98dc ("ASoC: rockchip: ignore 0Hz sysclk"), but it prepared by far not all drivers. Signed-off-by: Alexander Sverdlin <alexander.sverdlin(a)gmail.com> --- sound/soc/cirrus/ep93xx-i2s.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/cirrus/ep93xx-i2s.c b/sound/soc/cirrus/ep93xx-i2s.c index 982151330c89..f41712df7994 100644 --- a/sound/soc/cirrus/ep93xx-i2s.c +++ b/sound/soc/cirrus/ep93xx-i2s.c @@ -359,6 +359,8 @@ static int ep93xx_i2s_set_sysclk(struct snd_soc_dai *cpu_dai, int clk_id, if (dir == SND_SOC_CLOCK_IN || clk_id != 0) return -EINVAL; + if (!freq) + return 0; return clk_set_rate(info->mclk, freq); } -- 2.39.1

2 1

[PATCH] ASoC: dt-bindings: maxim,max98095: Convert to dtschema
by Krzysztof Kozlowski 13 Feb '23

13 Feb '23

Convert the Maxim Integrated MAX98095 audio codec bindings to DT schema. Add missing sound-dai-cells during conversion. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> --- .../devicetree/bindings/sound/max98095.txt | 22 -------- .../bindings/sound/maxim,max98095.yaml | 54 +++++++++++++++++++ 2 files changed, 54 insertions(+), 22 deletions(-) delete mode 100644 Documentation/devicetree/bindings/sound/max98095.txt create mode 100644 Documentation/devicetree/bindings/sound/maxim,max98095.yaml diff --git a/Documentation/devicetree/bindings/sound/max98095.txt b/Documentation/devicetree/bindings/sound/max98095.txt deleted file mode 100644 index 318a4c82f17f..000000000000 --- a/Documentation/devicetree/bindings/sound/max98095.txt +++ /dev/null @@ -1,22 +0,0 @@ -MAX98095 audio CODEC - -This device supports I2C only. - -Required properties: - -- compatible : "maxim,max98095". - -- reg : The I2C address of the device. - -Optional properties: - -- clocks: The phandle of the master clock to the CODEC - -- clock-names: Should be "mclk" - -Example: - -max98095: codec@11 { - compatible = "maxim,max98095"; - reg = <0x11>; -}; diff --git a/Documentation/devicetree/bindings/sound/maxim,max98095.yaml b/Documentation/devicetree/bindings/sound/maxim,max98095.yaml new file mode 100644 index 000000000000..77544a9e1587 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/maxim,max98095.yaml @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/maxim,max98095.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Maxim Integrated MAX98095 audio codec + +maintainers: + - Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> + +allOf: + - $ref: dai-common.yaml# + +properties: + compatible: + enum: + - maxim,max98095 + + reg: + maxItems: 1 + + clocks: + items: + - description: master clock + + clock-names: + items: + - const: mclk + + '#sound-dai-cells': + const: 1 + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + audio-codec@11 { + compatible = "maxim,max98095"; + reg = <0x11>; + clocks = <&i2s0 0>; + clock-names = "mclk"; + }; + }; -- 2.34.1

2 1

[PATCH] ALSA: hda: Fix codec device field initializan
by Cezary Rojewski 13 Feb '23

13 Feb '23

Commit f2bd1c5ae2cb ("ALSA: hda: Fix page fault in snd_hda_codec_shutdown()") relocated initialization of several codec device fields. Due to differences between codec_exec_verb() and snd_hdac_bus_exec_bus() in how they handle VERB execution - the latter does not touch PM - assigning ->exec_verb to codec_exec_verb() causes PM to be engaged before it is configured for the device. Configuration of PM for the ASoC HDAudio sound card is done with snd_hda_set_power_save() during skl_hda_audio_probe() whereas the assignment happens early, in snd_hda_codec_device_init(). Revert to previous behavior to avoid problems caused by too early PM manipulation. Suggested-by: Jason Montleon <jmontleo(a)redhat.com> Link: https://lore.kernel.org/regressions/CALFERdzKUodLsm6=Ub3g2+PxpNpPtPq3bGBLbf… Fixes: f2bd1c5ae2cb ("ALSA: hda: Fix page fault in snd_hda_codec_shutdown()") Signed-off-by: Cezary Rojewski <cezary.rojewski(a)intel.com> --- A result of recent discussion [1] regarding sound regression in v6.1 and onward. Fix made possible by outstanding input from Jason and Sasa (Cced) - Thank you! Note: I did not receive results from our CI yet, should happen on Monday but posting early so the review can be conducted. [1]: https://lore.kernel.org/regressions/CALFERdzKUodLsm6=Ub3g2+PxpNpPtPq3bGBLbf… sound/pci/hda/hda_codec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index ac1cc7c5290e..2e728aad6771 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -927,7 +927,6 @@ snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr, codec->depop_delay = -1; codec->fixup_id = HDA_FIXUP_ID_NOT_SET; codec->core.dev.release = snd_hda_codec_dev_release; - codec->core.exec_verb = codec_exec_verb; codec->core.type = HDA_DEV_LEGACY; mutex_init(&codec->spdif_mutex); @@ -998,6 +997,7 @@ int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card, if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS)) return -EINVAL; + codec->core.exec_verb = codec_exec_verb; codec->card = card; codec->addr = codec_addr; -- 2.25.1

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[PATCH] ASoC: Intel: Skylake: Replace 1-element array with flex-array
by Kees Cook 13 Feb '23

13 Feb '23

The kernel is globally removing the ambiguous 0-length and 1-element arrays in favor of flexible arrays, so that we can gain both compile-time and run-time array bounds checking[1]. In this instance, struct skl_cpr_cfg contains struct skl_cpr_gtw_cfg, which defined "config_data" as a 1-element array. Normally when switching from a 1-element array to a flex-array, any related size calculations must be adjusted too. However, it seems the original code was over-allocating space, since 1 extra u32 would be included by the sizeof(): param_size = sizeof(struct skl_cpr_cfg); param_size += mconfig->formats_config[SKL_PARAM_INIT].caps_size; But the copy uses caps_size bytes, and cap_size / 4 (i.e. sizeof(u32)) for the length tracking: memcpy(cpr_mconfig->gtw_cfg.config_data, mconfig->formats_config[SKL_PARAM_INIT].caps, mconfig->formats_config[SKL_PARAM_INIT].caps_size); cpr_mconfig->gtw_cfg.config_length = (mconfig->formats_config[SKL_PARAM_INIT].caps_size) / 4; Therefore, no size calculations need adjusting. Change the struct skl_cpr_gtw_cfg config_data member to be a true flexible array, which also fixes the over-allocation, and silences this memcpy run-time false positive: memcpy: detected field-spanning write (size 100) of single field "cpr_mconfig->gtw_cfg.config_data" at sound/soc/intel/skylake/skl-messages.c:554 (size 4) [1] For lots of details, see both: https://docs.kernel.org/process/deprecated.html#zero-length-and-one-element… https://people.kernel.org/kees/bounded-flexible-arrays-in-c Reported-by: Sasa Ostrouska <casaxa(a)gmail.com> Link: https://lore.kernel.org/all/CALFERdwvq5day_sbDfiUsMSZCQu9HG8-SBpOZDNPeMdZGo… Cc: Cezary Rojewski <cezary.rojewski(a)intel.com> Cc: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Cc: Liam Girdwood <liam.r.girdwood(a)linux.intel.com> Cc: Peter Ujfalusi <peter.ujfalusi(a)linux.intel.com> Cc: Bard Liao <yung-chuan.liao(a)linux.intel.com> Cc: Ranjani Sridharan <ranjani.sridharan(a)linux.intel.com> Cc: Kai Vehmanen <kai.vehmanen(a)linux.intel.com> Cc: Mark Brown <broonie(a)kernel.org> Cc: Jaroslav Kysela <perex(a)perex.cz> Cc: Takashi Iwai <tiwai(a)suse.com> Cc: "Gustavo A. R. Silva" <gustavoars(a)kernel.org> Cc: "Amadeusz Sławiński" <amadeuszx.slawinski(a)linux.intel.com> Cc: alsa-devel(a)alsa-project.org Signed-off-by: Kees Cook <keescook(a)chromium.org> --- sound/soc/intel/skylake/skl-topology.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/intel/skylake/skl-topology.h b/sound/soc/intel/skylake/skl-topology.h index 6db0fd7bad49..ad94f8020c27 100644 --- a/sound/soc/intel/skylake/skl-topology.h +++ b/sound/soc/intel/skylake/skl-topology.h @@ -115,7 +115,7 @@ struct skl_cpr_gtw_cfg { u32 dma_buffer_size; u32 config_length; /* not mandatory; required only for DMIC/I2S */ - u32 config_data[1]; + u32 config_data[]; } __packed; struct skl_dma_control { -- 2.34.1

3 4

[PATCH v4 0/4] Add CS35L41 shared boost feature
by Lucas Tanure 13 Feb '23

13 Feb '23

Valve's Steam Deck uses CS35L41 in shared boost mode, where both speakers share the boost circuit. Add this support in the shared lib, but for now, shared boost is not supported in HDA systems as would require BIOS changes. Based on David Rhodes shared boost patches. Also, fix boost config overwriting in IRQ found in the review and do a small refactor of the code. Changes from V3: - Fix wrong code sent - Fix ISO C90 mixed declarations and code Changes from V2: - Drop External boost without VSPK Documentation - Move Shared boost to use values 2 and 3 - Revert back to reg_sequence but reading the value first and only update the necessary bits - Fix bug found by Intel kernel Test Robot Changes from V1: - Fix Documentation patch subject - New patch for External boost without VSPK Documentation - New patch to fix boost IRQ overwriting issue - New patch to refactor IRQ release error code - reinit_completion on pcm_startup - fix DRE switch overwriting - return IRQ_HANDLED in PLL_LOCK case Lucas Tanure (4): ASoC: cs35l41: Only disable internal boost ASoC: cs35l41: Refactor error release code ALSA: cs35l41: Add shared boost feature ASoC: cs35l41: Document CS35l41 shared boost .../bindings/sound/cirrus,cs35l41.yaml | 10 +- include/sound/cs35l41.h | 13 +- sound/pci/hda/cs35l41_hda.c | 6 +- sound/soc/codecs/cs35l41-lib.c | 73 +++++++++- sound/soc/codecs/cs35l41.c | 125 +++++++++--------- sound/soc/codecs/cs35l41.h | 1 + 6 files changed, 157 insertions(+), 71 deletions(-) -- 2.39.1

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[PATCH V2 8/8] soundwire: amd: add pm_prepare callback and pm ops support
by Vijendar Mukunda 13 Feb '23

13 Feb '23

Add pm_prepare callback and System level pm ops support for AMD soundwire manager driver. Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda(a)amd.com> Signed-off-by: Mastan Katragadda <Mastan.Katragadda(a)amd.com> --- drivers/soundwire/amd_manager.c | 90 +++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) diff --git a/drivers/soundwire/amd_manager.c b/drivers/soundwire/amd_manager.c index e53dc67f8529..350d411e695d 100644 --- a/drivers/soundwire/amd_manager.c +++ b/drivers/soundwire/amd_manager.c @@ -1157,6 +1157,94 @@ static int amd_sdw_clock_stop_exit(struct amd_sdw_manager *amd_manager) return 0; } +static int amd_resume_child_device(struct device *dev, void *data) +{ + int ret; + struct sdw_slave *slave = dev_to_sdw_dev(dev); + + if (!slave->probed) { + dev_dbg(dev, "skipping device, no probed driver\n"); + return 0; + } + if (!slave->dev_num_sticky) { + dev_dbg(dev, "skipping device, never detected on bus\n"); + return 0; + } + + if (!pm_runtime_suspended(dev)) + return 0; + ret = pm_request_resume(dev); + if (ret < 0) + dev_err(dev, "%s: pm_request_resume failed: %d\n", __func__, ret); + + return ret; +} + +static int __maybe_unused amd_pm_prepare(struct device *dev) +{ + struct amd_sdw_manager *amd_manager = dev_get_drvdata(dev); + struct sdw_bus *bus = &amd_manager->bus; + int ret; + + if (bus->prop.hw_disabled) { + dev_dbg(bus->dev, "Soundwire manager %d is disabled, ignoring\n", + bus->link_id); + return 0; + } + /* + * When multiple peripheral devices connected over the same link, if soundwire manager + * device is not in runtime suspend state, observed that device alerts are missing + * without pm_prepare on AMD platforms in clockstop mode0. + */ + if (pm_runtime_suspended(dev) && amd_manager->power_mode_mask & AMD_SDW_CLK_STOP_MODE) { + ret = pm_request_resume(dev); + if (ret < 0) { + dev_err(bus->dev, "pm_request_resume failed: %d\n", ret); + return 0; + } + } + /* To force peripheral devices to system level suspend state, resume the devices + * from runtime suspend state first. Without that unable to dispatch the alert + * status to peripheral driver during system level resume as they are in runtime + * suspend state. + */ + ret = device_for_each_child(bus->dev, NULL, amd_resume_child_device); + if (ret < 0) + dev_err(dev, "%s: amd_resume_child_device failed: %d\n", __func__, ret); + return 0; +} + +static int __maybe_unused amd_suspend(struct device *dev) +{ + struct amd_sdw_manager *amd_manager = dev_get_drvdata(dev); + struct sdw_bus *bus = &amd_manager->bus; + int ret; + + if (bus->prop.hw_disabled) { + dev_dbg(bus->dev, "Soundwire manager %d is disabled, ignoring\n", + bus->link_id); + return 0; + } + + if (amd_manager->power_mode_mask & AMD_SDW_CLK_STOP_MODE) { + ret = amd_sdw_clock_stop(amd_manager); + if (ret) + return ret; + } else if (amd_manager->power_mode_mask & AMD_SDW_POWER_OFF_MODE) { + /* + * As per hardware programming sequence on AMD platforms, + * clock stop should be invoked first before powering-off + */ + ret = amd_sdw_clock_stop(amd_manager); + if (ret) + return ret; + ret = amd_deinit_sdw_manager(amd_manager); + if (ret) + return ret; + } + return 0; +} + static int __maybe_unused amd_suspend_runtime(struct device *dev) { struct amd_sdw_manager *amd_manager = dev_get_drvdata(dev); @@ -1229,6 +1317,8 @@ static int __maybe_unused amd_resume_runtime(struct device *dev) } static const struct dev_pm_ops amd_pm = { + .prepare = amd_pm_prepare, + SET_SYSTEM_SLEEP_PM_OPS(amd_suspend, amd_resume_runtime) SET_RUNTIME_PM_OPS(amd_suspend_runtime, amd_resume_runtime, NULL) }; -- 2.34.1

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[PATCH V2 4/8] soundwire: amd: enable build for AMD soundwire manager driver
by Vijendar Mukunda 13 Feb '23

13 Feb '23

Enable build for soundwire manager driver for AMD platforms. Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda(a)amd.com> --- drivers/soundwire/Kconfig | 10 ++++++++++ drivers/soundwire/Makefile | 4 ++++ 2 files changed, 14 insertions(+) diff --git a/drivers/soundwire/Kconfig b/drivers/soundwire/Kconfig index 2b7795233282..5baf128ae60d 100644 --- a/drivers/soundwire/Kconfig +++ b/drivers/soundwire/Kconfig @@ -46,4 +46,14 @@ config SOUNDWIRE_QCOM config SOUNDWIRE_GENERIC_ALLOCATION tristate +config SOUNDWIRE_AMD + tristate "AMD Soundwire Manager driver" + select SOUNDWIRE_GENERIC_ALLOCATION + depends on ACPI && SND_SOC + help + Soundwire AMD Manager driver. + If you have an AMD platform which has a Soundwire Manager then + enable this config option to get the Soundwire support for that + device. + endif diff --git a/drivers/soundwire/Makefile b/drivers/soundwire/Makefile index ca97414ada70..5956229d3eb3 100644 --- a/drivers/soundwire/Makefile +++ b/drivers/soundwire/Makefile @@ -26,3 +26,7 @@ obj-$(CONFIG_SOUNDWIRE_INTEL) += soundwire-intel.o #Qualcomm driver soundwire-qcom-y := qcom.o obj-$(CONFIG_SOUNDWIRE_QCOM) += soundwire-qcom.o + +#AMD driver +soundwire-amd-y := amd_manager.o +obj-$(CONFIG_SOUNDWIRE_AMD) += soundwire-amd.o -- 2.34.1

1 0

[PATCH V2 1/8] soundwire: export sdw_compute_slave_ports() function
by Vijendar Mukunda 13 Feb '23

13 Feb '23

Export sdw_compute_slave_ports() function to use it in another soundwire manager module. Move sdw_transport_data structure to bus header file to export sdw_compute_slave_ports() function. Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda(a)amd.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> Link: https://lore.kernel.org/lkml/20230201165944.3169125-1-Vijendar.Mukunda@amd.… --- drivers/soundwire/bus.h | 9 +++++++++ drivers/soundwire/generic_bandwidth_allocation.c | 12 +++--------- 2 files changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/soundwire/bus.h b/drivers/soundwire/bus.h index 96927a143796..0ea0412842c5 100644 --- a/drivers/soundwire/bus.h +++ b/drivers/soundwire/bus.h @@ -144,6 +144,13 @@ struct sdw_master_runtime { struct list_head bus_node; }; +struct sdw_transport_data { + int hstart; + int hstop; + int block_offset; + int sub_block_offset; +}; + struct sdw_dpn_prop *sdw_get_slave_dpn_prop(struct sdw_slave *slave, enum sdw_data_direction direction, unsigned int port_num); @@ -212,5 +219,7 @@ int sdw_bwrite_no_pm_unlocked(struct sdw_bus *bus, u16 dev_num, u32 addr, u8 val void sdw_clear_slave_status(struct sdw_bus *bus, u32 request); int sdw_slave_modalias(const struct sdw_slave *slave, char *buf, size_t size); +void sdw_compute_slave_ports(struct sdw_master_runtime *m_rt, + struct sdw_transport_data *t_data); #endif /* __SDW_BUS_H */ diff --git a/drivers/soundwire/generic_bandwidth_allocation.c b/drivers/soundwire/generic_bandwidth_allocation.c index f7c66083a4dd..39543048baa7 100644 --- a/drivers/soundwire/generic_bandwidth_allocation.c +++ b/drivers/soundwire/generic_bandwidth_allocation.c @@ -28,15 +28,8 @@ struct sdw_group { unsigned int *rates; }; -struct sdw_transport_data { - int hstart; - int hstop; - int block_offset; - int sub_block_offset; -}; - -static void sdw_compute_slave_ports(struct sdw_master_runtime *m_rt, - struct sdw_transport_data *t_data) +void sdw_compute_slave_ports(struct sdw_master_runtime *m_rt, + struct sdw_transport_data *t_data) { struct sdw_slave_runtime *s_rt = NULL; struct sdw_port_runtime *p_rt; @@ -85,6 +78,7 @@ static void sdw_compute_slave_ports(struct sdw_master_runtime *m_rt, } } } +EXPORT_SYMBOL(sdw_compute_slave_ports); static void sdw_compute_master_ports(struct sdw_master_runtime *m_rt, struct sdw_group_params *params, -- 2.34.1

1 0

Fixed GPIO2 value assigned
by Kailang 13 Feb '23

13 Feb '23

Hi Takashi, This fix was GPIO2 value 0x3 change to 0x4. GPIO2 GPIO1 GPIO0 1 0 0 ==> 0x4 ==> GPIO2 HIGH GPIO2 GPIO1 GPIO0 0 1 1 ==> 0x3 ==> GPIO0 and GPIO1 HIGH BR, Kailang

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