Re: [PATCH v5 04/12] soc: qcom: pmic_glink: register ucsi aux device
From: Dmitry Baryshkov <hidden>
Date: 2023-03-21 15:38:17
Also in:
linux-arm-msm, linux-devicetree, linux-usb, lkml
On 21/03/2023 15:21, Neil Armstrong wrote:
Only register UCSI on know working devices, like on the SM8450 or SM8550 which requires UCSI to get USB mode switch events. Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Dmitry Baryshkov <redacted> Two nits below:
quoted hunk ↗ jump to hunk
--- drivers/soc/qcom/pmic_glink.c | 65 +++++++++++++++++++++++++++++++++++-------- 1 file changed, 54 insertions(+), 11 deletions(-)diff --git a/drivers/soc/qcom/pmic_glink.c b/drivers/soc/qcom/pmic_glink.c index bb3fb57abcc6..8bf95df0a56a 100644 --- a/drivers/soc/qcom/pmic_glink.c +++ b/drivers/soc/qcom/pmic_glink.c@@ -4,6 +4,7 @@ * Copyright (c) 2022, Linaro Ltd */ #include <linux/auxiliary_bus.h> +#include <linux/of_device.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/rpmsg.h>@@ -11,12 +12,23 @@ #include <linux/soc/qcom/pdr.h> #include <linux/soc/qcom/pmic_glink.h> +enum { + PMIC_GLINK_CLIENT_BATT = 0, + PMIC_GLINK_CLIENT_ALTMODE, + PMIC_GLINK_CLIENT_UCSI, +}; + +#define PMIC_GLINK_CLIENT_DEFAULT (BIT(PMIC_GLINK_CLIENT_BATT) | \ + BIT(PMIC_GLINK_CLIENT_ALTMODE)) + struct pmic_glink { struct device *dev; struct pdr_handle *pdr; struct rpmsg_endpoint *ept; + unsigned long client_mask; + struct auxiliary_device altmode_aux; struct auxiliary_device ps_aux; struct auxiliary_device ucsi_aux;@@ -233,6 +245,7 @@ static struct rpmsg_driver pmic_glink_rpmsg_driver = { static int pmic_glink_probe(struct platform_device *pdev) { + const unsigned long *match_data; struct pdr_service *service; struct pmic_glink *pg; int ret;@@ -249,12 +262,27 @@ static int pmic_glink_probe(struct platform_device *pdev) mutex_init(&pg->client_lock); mutex_init(&pg->state_lock); - ret = pmic_glink_add_aux_device(pg, &pg->altmode_aux, "altmode"); - if (ret) - return ret; - ret = pmic_glink_add_aux_device(pg, &pg->ps_aux, "power-supply"); - if (ret) - goto out_release_altmode_aux; + match_data = (unsigned long *)of_device_get_match_data(&pdev->dev);
Nit: type cast should not be necessary here.
quoted hunk ↗ jump to hunk
+ if (match_data) + pg->client_mask = *match_data; + else + pg->client_mask = PMIC_GLINK_CLIENT_DEFAULT; + + if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_UCSI)) { + ret = pmic_glink_add_aux_device(pg, &pg->ucsi_aux, "ucsi"); + if (ret) + return ret; + } + if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_ALTMODE)) { + ret = pmic_glink_add_aux_device(pg, &pg->altmode_aux, "altmode"); + if (ret) + goto out_release_ucsi_aux; + } + if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_BATT)) { + ret = pmic_glink_add_aux_device(pg, &pg->ps_aux, "power-supply"); + if (ret) + goto out_release_altmode_aux; + } pg->pdr = pdr_handle_alloc(pmic_glink_pdr_callback, pg); if (IS_ERR(pg->pdr)) {@@ -278,9 +306,14 @@ static int pmic_glink_probe(struct platform_device *pdev) out_release_pdr_handle: pdr_handle_release(pg->pdr); out_release_aux_devices: - pmic_glink_del_aux_device(pg, &pg->ps_aux); + if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_BATT)) + pmic_glink_del_aux_device(pg, &pg->ps_aux); out_release_altmode_aux: - pmic_glink_del_aux_device(pg, &pg->altmode_aux); + if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_ALTMODE)) + pmic_glink_del_aux_device(pg, &pg->altmode_aux); +out_release_ucsi_aux: + if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_UCSI)) + pmic_glink_del_aux_device(pg, &pg->ucsi_aux); return ret; }@@ -291,8 +324,12 @@ static int pmic_glink_remove(struct platform_device *pdev) pdr_handle_release(pg->pdr); - pmic_glink_del_aux_device(pg, &pg->ps_aux); - pmic_glink_del_aux_device(pg, &pg->altmode_aux); + if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_BATT)) + pmic_glink_del_aux_device(pg, &pg->ps_aux); + if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_ALTMODE)) + pmic_glink_del_aux_device(pg, &pg->altmode_aux); + if (pg->client_mask & BIT(PMIC_GLINK_CLIENT_UCSI)) + pmic_glink_del_aux_device(pg, &pg->ucsi_aux); mutex_lock(&__pmic_glink_lock); __pmic_glink = NULL;@@ -301,8 +338,14 @@ static int pmic_glink_remove(struct platform_device *pdev) return 0; } +/* Do not handle altmode for now on those platforms */ +static const unsigned long pmic_glink_sm8450_client_mask = BIT(PMIC_GLINK_CLIENT_BATT) | + BIT(PMIC_GLINK_CLIENT_UCSI); + static const struct of_device_id pmic_glink_of_match[] = { - { .compatible = "qcom,pmic-glink", },
Nit: one can leave comma in place to remove noise.
+ { .compatible = "qcom,sm8450-pmic-glink", .data = &pmic_glink_sm8450_client_mask },
+ { .compatible = "qcom,sm8550-pmic-glink", .data = &pmic_glink_sm8450_client_mask },
+ { .compatible = "qcom,pmic-glink" },
{}
};
MODULE_DEVICE_TABLE(of, pmic_glink_of_match);-- With best wishes Dmitry _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel