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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?4NTawC/CW2G4z5LChVfmBgS1XEjw+8+R6i5Us7v/Qtiqmvto5Ka0byaVely7?= =?us-ascii?Q?RBUis4gA/TcHuBflZjVtcCC9q2+kU+EQ0d+xSVi6fKKTysyKb7qY4o/9OYVO?= =?us-ascii?Q?ve1+YhmWOyktEYMLcS6ZEM22EGcaNjA6MZL9eYBvcGYjPPguFFdnH3kmCaDW?= =?us-ascii?Q?MOxpd25PtNHYdUJ0DUnXGgDr1ATD9yOdcHEpF9B8sQWtREYrmDhjLtWltVR4?= =?us-ascii?Q?pvEm78NVdkzzxvhLffr6UMPljEhTck0igA5LYf+2CcR8WwvrZnyCIxNZG4/W?= =?us-ascii?Q?/GxZYZzp2FCQmiOiAcAGMMTnxfrDOB3GWm0GlFfCDCf2rlU6RJUFdTezUbX7?= =?us-ascii?Q?uAO7ecj63x/fr/5WTJoRc00Mfapw/6LbjaKYHHCCbAbNPCjuxBKC74TH7k1Z?= =?us-ascii?Q?1ZTtwPuto/ayOOrXcl6NiSluYCvQqJF3J0xpkrYw0sZYm7Lrl6TTl/DYZlA+?= =?us-ascii?Q?0/lMAKZMf5mib1KAXFJn2NmCYpZNKnKXRJBOrNytcdk6FhBn+jItDvCwhVrz?= =?us-ascii?Q?pu4Z4OG6UFmxMbQ1JFMnoLsX+s0lV2jWJFEdW4BvEaBH7HC+b86gxNNQJJP6?= =?us-ascii?Q?20Igqu40VZAj3pl5IlgyFjmZTnAJt/D1BJzCFsjkY/ATee2Z8/YKd01wTg5Y?= =?us-ascii?Q?jdE2bE3OuRsOpsGDZPYR5TlGcgy/ZId/hpOxfIbl1WyrQmFB0+Bj/Ue7D62z?= =?us-ascii?Q?vMmv1N4IFkK0WjawWFeeDX0Da/6j3cET7L98QRqpTc/2pVxc530fT0BzcOGe?= =?us-ascii?Q?wpBpmTqfcAQ/BvgOCeXyrH/DuuewNegqKGkEnaunr6bOEUnTJHBCVpITaNTM?= =?us-ascii?Q?F3uDzxnSEZnG9BYFhTcQ5Fpsu6y0SsnbZ1P5dWu3W685XYtjMirG24bXwWWW?= =?us-ascii?Q?wzRmtGRBUPY2XsYI2koVxcvvJdugN2obbOZS33lSPufVfOG4rBVD7fdPcSXQ?= =?us-ascii?Q?AYOZbtXWr6TqwQuDc+OhpjpFP+FRX6s7wZmZVxgQdOfIwX07sRemdDXED3PB?= =?us-ascii?Q?p3s/ETwXVO5JzSTaPyYDMnyz/Ldw6gIkUeHFHOe0pVQ4Ds7mKcUan99O7XFv?= =?us-ascii?Q?AbGp5E9+rlG1v+GbFuTfEDpCDNdnvNCFYzwk3JRIE7097ApBaLpDMVhxN1Td?= =?us-ascii?Q?6VQNNSkjqGwXya+0WX9xMPyQxOl7Wfq7DAOybaR73qs67467S+Bl/iThsknH?= =?us-ascii?Q?N1ZClthShxxtULfXkTcrliLzAmdO7kWkq+lZ35GN/MGET1JrzrqbOdirUTJr?= =?us-ascii?Q?ZWbey3owfY6QGNHpCOKwYGC8N9HwRCt7k580CfMPGOsnWeJV/ryjzGPDsAZS?= =?us-ascii?Q?9hDRzqn6+o0lflROuvzX9JRFKcGfmcpqtHneYnf3IL99yNKzn3aj682vuten?= =?us-ascii?Q?TESJmENBJKJdVYkS7WO8qxzbt4oCWwdAYmq4M/9GJ/PL+B87euHMrTSZjFrO?= =?us-ascii?Q?ldx2g7bRyPjccTLk3TLsAHmgUMReBfVCQTNqSBJ03fl2lWI9KPUd2XEnHXEz?= =?us-ascii?Q?3DUF06fl9zWPO85/Ams8MF8Yg15cqafX3lWrzKCjgV/BXTliNnzDj5Ze9jxm?= =?us-ascii?Q?ez7Q6hqq5Ivwtw83wcYtwUjPFgF1hcUGoch5Ginb/M/rtYTP1sXw0yK+qZyv?= =?us-ascii?Q?Jb/el7PkCRTTgl13FkYjJrmPlVEnOemqCvYilxaqCqI+GFLjnILztQd5VRCX?= =?us-ascii?Q?FYIOSnYk8wqA1lZCx4bG2fj5qnh1sAEmTKycvRS9jzJ0ZvVxqsRk5iCI+7rY?= =?us-ascii?Q?3DpmsjbX1A=3D=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6e0d494d-7415-4cb5-bb48-08de7b641ffb X-MS-Exchange-CrossTenant-AuthSource: AM0PR04MB7044.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Mar 2026 09:38:29.8516 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: I8dgz7XenH2BVSMCk2P3MmhVTF/KNchTit1vZn3VS1Q74dR+sz+NxY47ytx0calWM0H0SJUI8qCR2TRb7u6lEg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB8PR04MB7001 There are some registers which are volatile, at pm runtime suspend state, the regmap cache only is enabled, regmap will return -EBUSY when trying to access these registers. static int _regmap_read(struct regmap *map, unsigned int reg, unsigned int *val) { int ret; void *context = _regmap_map_get_context(map); if (!map->cache_bypass) { ret = regcache_read(map, reg, val); if (ret == 0) return 0; } if (map->cache_only) return -EBUSY; if (!regmap_readable(map, reg)) return -EIO; When exporting these registers by amixer interface to user space, there will be -EBUSY errors in mixer-test when the cpu dai is in idle. In order to avoid such error, needs to define FSL own functions to take a pm runtime reference before calling snd_soc_get_xr_sx(), snd_soc_get_enum_double(), snd_soc_get_volsw(), and so on. Signed-off-by: Shengjiu Wang --- sound/soc/fsl/fsl_utils.c | 113 ++++++++++++++++++++++++++++++++++++++ sound/soc/fsl/fsl_utils.h | 30 ++++++++++ 2 files changed, 143 insertions(+) diff --git a/sound/soc/fsl/fsl_utils.c b/sound/soc/fsl/fsl_utils.c index d69a6b9795bf..b82c2c3bc886 100644 --- a/sound/soc/fsl/fsl_utils.c +++ b/sound/soc/fsl/fsl_utils.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include "fsl_utils.h" @@ -197,6 +198,118 @@ void fsl_asoc_constrain_rates(struct snd_pcm_hw_constraint_list *target_constr, } EXPORT_SYMBOL(fsl_asoc_constrain_rates); +/* + * Below functions are used by mixer interface to avoid accessing registers + * which are volatile at pm runtime suspend state (cache_only is enabled). + */ +int fsl_asoc_get_xr_sx(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + int ret = 0; + + ret = pm_runtime_resume_and_get(component->dev); + if (ret) + return ret; + + ret = snd_soc_get_xr_sx(kcontrol, ucontrol); + + pm_runtime_put_autosuspend(component->dev); + + return ret; +} +EXPORT_SYMBOL(fsl_asoc_get_xr_sx); + +int fsl_asoc_put_xr_sx(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + int ret = 0; + + ret = pm_runtime_resume_and_get(component->dev); + if (ret) + return ret; + + ret = snd_soc_put_xr_sx(kcontrol, ucontrol); + + pm_runtime_put_autosuspend(component->dev); + + return ret; +} +EXPORT_SYMBOL(fsl_asoc_put_xr_sx); + +int fsl_asoc_get_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + int ret = 0; + + ret = pm_runtime_resume_and_get(component->dev); + if (ret) + return ret; + + ret = snd_soc_get_enum_double(kcontrol, ucontrol); + + pm_runtime_put_autosuspend(component->dev); + + return ret; +} +EXPORT_SYMBOL(fsl_asoc_get_enum_double); + +int fsl_asoc_put_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + int ret = 0; + + ret = pm_runtime_resume_and_get(component->dev); + if (ret) + return ret; + + ret = snd_soc_put_enum_double(kcontrol, ucontrol); + + pm_runtime_put_autosuspend(component->dev); + + return ret; +} +EXPORT_SYMBOL(fsl_asoc_put_enum_double); + +int fsl_asoc_get_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + int ret = 0; + + ret = pm_runtime_resume_and_get(component->dev); + if (ret) + return ret; + + ret = snd_soc_get_volsw(kcontrol, ucontrol); + + pm_runtime_put_autosuspend(component->dev); + + return ret; +} +EXPORT_SYMBOL(fsl_asoc_get_volsw); + +int fsl_asoc_put_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + int ret = 0; + + ret = pm_runtime_resume_and_get(component->dev); + if (ret) + return ret; + + ret = snd_soc_put_volsw(kcontrol, ucontrol); + + pm_runtime_put_autosuspend(component->dev); + + return ret; +} +EXPORT_SYMBOL(fsl_asoc_put_volsw); + MODULE_AUTHOR("Timur Tabi "); MODULE_DESCRIPTION("Freescale ASoC utility code"); MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/fsl/fsl_utils.h b/sound/soc/fsl/fsl_utils.h index 21b25a11ecda..0cf9d1e7fb14 100644 --- a/sound/soc/fsl/fsl_utils.h +++ b/sound/soc/fsl/fsl_utils.h @@ -31,4 +31,34 @@ void fsl_asoc_constrain_rates(struct snd_pcm_hw_constraint_list *target_constr, const struct snd_pcm_hw_constraint_list *original_constr, struct clk *pll8k_clk, struct clk *pll11k_clk, struct clk *ext_clk, int *target_rates); + +/* Similar to SOC_SINGLE_XR_SX, but it is for read only registers. */ +#define FSL_ASOC_SINGLE_XR_SX_EXT_RO(xname, xregbase, xregcount, xnbits, \ + xmin, xmax, xinvert, xhandler_get) \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ + .access = SNDRV_CTL_ELEM_ACCESS_READ | \ + SNDRV_CTL_ELEM_ACCESS_VOLATILE, \ + .info = snd_soc_info_xr_sx, .get = xhandler_get, \ + .private_value = (unsigned long)&(struct soc_mreg_control) \ + {.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \ + .invert = xinvert, .min = xmin, .max = xmax} } + +int fsl_asoc_get_xr_sx(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol); + +int fsl_asoc_put_xr_sx(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol); + +int fsl_asoc_get_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol); + +int fsl_asoc_put_enum_double(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol); + +int fsl_asoc_get_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol); + +int fsl_asoc_put_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol); + #endif /* _FSL_UTILS_H */ -- 2.34.1