Commit 3b464aff authored by Marc Kleine-Budde's avatar Marc Kleine-Budde
Browse files

can: m_can: use cdev as name for struct m_can_classdev uniformly 

This patch coverts the m_can driver to use cdev as name for struct
m_can_classdev uniformly throughout the whole driver.

Link: https://lore.kernel.org/r/20201212175518.139651-4-mkl@pengutronix.de


Reviewed-by: default avatarSean Nyekjaer <sean@geanix.com>
Reviewed-by: default avatarDan Murphy <dmurphy@ti.com>
Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
parent 709efa6f

drivers/net/can/m_can/m_can.c

+49 −49
Original line number Diff line number Diff line
@@ -1327,79 +1327,79 @@ static bool m_can_niso_supported(struct m_can_classdev *cdev) 
	return !niso_timeout;

}



static int m_can_dev_setup(struct m_can_classdev *m_can_dev)

static int m_can_dev_setup(struct m_can_classdev *cdev)

{

	struct net_device *dev = m_can_dev->net;

	struct net_device *dev = cdev->net;

	int m_can_version;



	m_can_version = m_can_check_core_release(m_can_dev);

	m_can_version = m_can_check_core_release(cdev);

	/* return if unsupported version */

	if (!m_can_version) {

		dev_err(m_can_dev->dev, "Unsupported version number: %2d",

		dev_err(cdev->dev, "Unsupported version number: %2d",

			m_can_version);

		return -EINVAL;

	}



	if (!m_can_dev->is_peripheral)

		netif_napi_add(dev, &m_can_dev->napi,

	if (!cdev->is_peripheral)

		netif_napi_add(dev, &cdev->napi,

			       m_can_poll, M_CAN_NAPI_WEIGHT);



	/* Shared properties of all M_CAN versions */

	m_can_dev->version = m_can_version;

	m_can_dev->can.do_set_mode = m_can_set_mode;

	m_can_dev->can.do_get_berr_counter = m_can_get_berr_counter;

	cdev->version = m_can_version;

	cdev->can.do_set_mode = m_can_set_mode;

	cdev->can.do_get_berr_counter = m_can_get_berr_counter;



	/* Set M_CAN supported operations */

	m_can_dev->can.ctrlmode_supported = CAN_CTRLMODE_LOOPBACK |

	cdev->can.ctrlmode_supported = CAN_CTRLMODE_LOOPBACK |

		CAN_CTRLMODE_LISTENONLY |

		CAN_CTRLMODE_BERR_REPORTING |

		CAN_CTRLMODE_FD |

		CAN_CTRLMODE_ONE_SHOT;



	/* Set properties depending on M_CAN version */

	switch (m_can_dev->version) {

	switch (cdev->version) {

	case 30:

		/* CAN_CTRLMODE_FD_NON_ISO is fixed with M_CAN IP v3.0.x */

		can_set_static_ctrlmode(dev, CAN_CTRLMODE_FD_NON_ISO);

		m_can_dev->can.bittiming_const = m_can_dev->bit_timing ?

			m_can_dev->bit_timing : &m_can_bittiming_const_30X;

		cdev->can.bittiming_const = cdev->bit_timing ?

			cdev->bit_timing : &m_can_bittiming_const_30X;



		m_can_dev->can.data_bittiming_const = m_can_dev->data_timing ?

			m_can_dev->data_timing :

		cdev->can.data_bittiming_const = cdev->data_timing ?

			cdev->data_timing :

			&m_can_data_bittiming_const_30X;

		break;

	case 31:

		/* CAN_CTRLMODE_FD_NON_ISO is fixed with M_CAN IP v3.1.x */

		can_set_static_ctrlmode(dev, CAN_CTRLMODE_FD_NON_ISO);

		m_can_dev->can.bittiming_const = m_can_dev->bit_timing ?

			m_can_dev->bit_timing : &m_can_bittiming_const_31X;

		cdev->can.bittiming_const = cdev->bit_timing ?

			cdev->bit_timing : &m_can_bittiming_const_31X;



		m_can_dev->can.data_bittiming_const = m_can_dev->data_timing ?

			m_can_dev->data_timing :

		cdev->can.data_bittiming_const = cdev->data_timing ?

			cdev->data_timing :

			&m_can_data_bittiming_const_31X;

		break;

	case 32:

	case 33:

		/* Support both MCAN version v3.2.x and v3.3.0 */

		m_can_dev->can.bittiming_const = m_can_dev->bit_timing ?

			m_can_dev->bit_timing : &m_can_bittiming_const_31X;

		cdev->can.bittiming_const = cdev->bit_timing ?

			cdev->bit_timing : &m_can_bittiming_const_31X;



		m_can_dev->can.data_bittiming_const = m_can_dev->data_timing ?

			m_can_dev->data_timing :

		cdev->can.data_bittiming_const = cdev->data_timing ?

			cdev->data_timing :

			&m_can_data_bittiming_const_31X;



		m_can_dev->can.ctrlmode_supported |=

			(m_can_niso_supported(m_can_dev) ?

		cdev->can.ctrlmode_supported |=

			(m_can_niso_supported(cdev) ?

			 CAN_CTRLMODE_FD_NON_ISO : 0);

		break;

	default:

		dev_err(m_can_dev->dev, "Unsupported version number: %2d",

			m_can_dev->version);

		dev_err(cdev->dev, "Unsupported version number: %2d",

			cdev->version);

		return -EINVAL;

	}



	if (m_can_dev->ops->init)

		m_can_dev->ops->init(m_can_dev);

	if (cdev->ops->init)

		cdev->ops->init(cdev);



	return 0;

}
@@ -1751,15 +1751,15 @@ void m_can_init_ram(struct m_can_classdev *cdev) 
}

EXPORT_SYMBOL_GPL(m_can_init_ram);



int m_can_class_get_clocks(struct m_can_classdev *m_can_dev)

int m_can_class_get_clocks(struct m_can_classdev *cdev)

{

	int ret = 0;



	m_can_dev->hclk = devm_clk_get(m_can_dev->dev, "hclk");

	m_can_dev->cclk = devm_clk_get(m_can_dev->dev, "cclk");

	cdev->hclk = devm_clk_get(cdev->dev, "hclk");

	cdev->cclk = devm_clk_get(cdev->dev, "cclk");



	if (IS_ERR(m_can_dev->cclk)) {

		dev_err(m_can_dev->dev, "no clock found\n");

	if (IS_ERR(cdev->cclk)) {

		dev_err(cdev->dev, "no clock found\n");

		ret = -ENODEV;

	}
@@ -1818,49 +1818,49 @@ void m_can_class_free_dev(struct net_device *net) 
}

EXPORT_SYMBOL_GPL(m_can_class_free_dev);



int m_can_class_register(struct m_can_classdev *m_can_dev)

int m_can_class_register(struct m_can_classdev *cdev)

{

	int ret;



	if (m_can_dev->pm_clock_support) {

		ret = m_can_clk_start(m_can_dev);

	if (cdev->pm_clock_support) {

		ret = m_can_clk_start(cdev);

		if (ret)

			return ret;

	}



	ret = m_can_dev_setup(m_can_dev);

	ret = m_can_dev_setup(cdev);

	if (ret)

		goto clk_disable;



	ret = register_m_can_dev(m_can_dev->net);

	ret = register_m_can_dev(cdev->net);

	if (ret) {

		dev_err(m_can_dev->dev, "registering %s failed (err=%d)\n",

			m_can_dev->net->name, ret);

		dev_err(cdev->dev, "registering %s failed (err=%d)\n",

			cdev->net->name, ret);

		goto clk_disable;

	}



	devm_can_led_init(m_can_dev->net);

	devm_can_led_init(cdev->net);



	of_can_transceiver(m_can_dev->net);

	of_can_transceiver(cdev->net);



	dev_info(m_can_dev->dev, "%s device registered (irq=%d, version=%d)\n",

		 KBUILD_MODNAME, m_can_dev->net->irq, m_can_dev->version);

	dev_info(cdev->dev, "%s device registered (irq=%d, version=%d)\n",

		 KBUILD_MODNAME, cdev->net->irq, cdev->version);



	/* Probe finished

	 * Stop clocks. They will be reactivated once the M_CAN device is opened

	 */

clk_disable:

	m_can_clk_stop(m_can_dev);

	m_can_clk_stop(cdev);



	return ret;

}

EXPORT_SYMBOL_GPL(m_can_class_register);



void m_can_class_unregister(struct m_can_classdev *m_can_dev)

void m_can_class_unregister(struct m_can_classdev *cdev)

{

	unregister_candev(m_can_dev->net);

	unregister_candev(cdev->net);



	m_can_clk_stop(m_can_dev);

	m_can_clk_stop(cdev);

}

EXPORT_SYMBOL_GPL(m_can_class_unregister);

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