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soc: qcom: pmic_glink: register ucsi aux device

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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 <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230130-topic-sm8450-upstream-pmic-glink-v5-4-552f3b721f9e@linaro.org
This commit is contained in:
Neil Armstrong 2023-03-21 14:21:44 +01:00 committed by Bjorn Andersson
parent 84a334131f
commit ff642773b6
1 changed files with 54 additions and 11 deletions
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65
drivers/soc/qcom/pmic_glink.c
View file

@ -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);
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", },
{ .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);