linux-kernel - Re: [PATCH v4 09/11] serial: 8250_lpss: move Quark code from PCI driver

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Date:	Wed, 04 May 2016 16:14:07 +0100
From:	Bryan O'Donoghue <pure.logic@...us-software.ie>
To:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Peter Hurley <peter@...leysoftware.com>,
	linux-serial@...r.kernel.org, Vinod Koul <vinod.koul@...el.com>,
	linux-kernel@...r.kernel.org, dmaengine@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	ismo.puustinen@...el.com,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Subject: Re: [PATCH v4 09/11] serial: 8250_lpss: move Quark code from PCI
 driver

On Wed, 2016-05-04 at 17:32 +0300, Andy Shevchenko wrote:
> Intel Quark has DesignWare UART. Move the code from 8250_pci to
> 8250_lpss.
> 
> Reviewed-by: Bryan O'Donoghue <pure.logic@...us-software.ie>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>  drivers/tty/serial/8250/8250_lpss.c | 11 +++++++++++
>  drivers/tty/serial/8250/8250_pci.c  | 15 +--------------
>  2 files changed, 12 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/tty/serial/8250/8250_lpss.c
> b/drivers/tty/serial/8250/8250_lpss.c
> index 77cf7e3..3beb3aa 100644
> --- a/drivers/tty/serial/8250/8250_lpss.c
> +++ b/drivers/tty/serial/8250/8250_lpss.c
> @@ -25,6 +25,8 @@
>  #define PCI_DEVICE_ID_INTEL_BSW_UART1	0x228a
>  #define PCI_DEVICE_ID_INTEL_BSW_UART2	0x228c
>  
> +#define PCI_DEVICE_ID_INTEL_QRK_UARTx	0x0936
> +
>  #define PCI_DEVICE_ID_INTEL_BDW_UART1	0x9ce3
>  #define PCI_DEVICE_ID_INTEL_BDW_UART2	0x9ce4
>  
> @@ -165,6 +167,9 @@ static int lpss8250_dma_setup(struct lpss8250
> *lpss, struct uart_8250_port *port
>  	struct dw_dma_slave *rx_param, *tx_param;
>  	struct device *dev = port->port.dev;
>  
> +	if (!lpss->dma_param.dma_dev)
> +		return 0;
> +
>  	rx_param = devm_kzalloc(dev, sizeof(*rx_param), GFP_KERNEL);
>  	if (!rx_param)
>  		return -ENOMEM;
> @@ -252,6 +257,11 @@ static const struct lpss8250_board byt_board = {
>  	.setup = byt_serial_setup,
>  };
>  
> +static const struct lpss8250_board qrk_board = {
> +	.freq = 44236800,
> +	.base_baud = 2764800,
> +};
> +
>  #define LPSS_DEVICE(id, board) { PCI_VDEVICE(INTEL, id),
> (kernel_ulong_t)&board }
>  
>  static const struct pci_device_id pci_ids[] = {
> @@ -259,6 +269,7 @@ static const struct pci_device_id pci_ids[] = {
>  	LPSS_DEVICE(PCI_DEVICE_ID_INTEL_BYT_UART2, byt_board),
>  	LPSS_DEVICE(PCI_DEVICE_ID_INTEL_BSW_UART1, byt_board),
>  	LPSS_DEVICE(PCI_DEVICE_ID_INTEL_BSW_UART2, byt_board),
> +	LPSS_DEVICE(PCI_DEVICE_ID_INTEL_QRK_UARTx, qrk_board),
>  	LPSS_DEVICE(PCI_DEVICE_ID_INTEL_BDW_UART1, byt_board),
>  	LPSS_DEVICE(PCI_DEVICE_ID_INTEL_BDW_UART2, byt_board),
>  	{ },
> diff --git a/drivers/tty/serial/8250/8250_pci.c
> b/drivers/tty/serial/8250/8250_pci.c
> index bb4df5d..b94b1ee 100644
> --- a/drivers/tty/serial/8250/8250_pci.c
> +++ b/drivers/tty/serial/8250/8250_pci.c
> @@ -1765,7 +1765,6 @@ pci_wch_ch38x_setup(struct serial_private
> *priv,
>  #define PCI_DEVICE_ID_COMMTECH_4222PCIE	0x0022
>  #define PCI_DEVICE_ID_BROADCOM_TRUMANAGE 0x160a
>  #define PCI_DEVICE_ID_AMCC_ADDIDATA_APCI7800 0x818e
> -#define PCI_DEVICE_ID_INTEL_QRK_UART	0x0936
>  
>  #define PCI_VENDOR_ID_SUNIX		0x1fd4
>  #define PCI_DEVICE_ID_SUNIX_1999	0x1999
> @@ -2736,7 +2735,6 @@ enum pci_board_num_t {
>  	pbn_ADDIDATA_PCIe_4_3906250,
>  	pbn_ADDIDATA_PCIe_8_3906250,
>  	pbn_ce4100_1_115200,
> -	pbn_qrk,
>  	pbn_omegapci,
>  	pbn_NETMOS9900_2s_115200,
>  	pbn_brcm_trumanage,
> @@ -3512,12 +3510,6 @@ static struct pciserial_board pci_boards[] = {
>  		.base_baud	= 921600,
>  		.reg_shift      = 2,
>  	},
> -	[pbn_qrk] = {
> -		.flags		= FL_BASE0,
> -		.num_ports	= 1,
> -		.base_baud	= 2764800,
> -		.reg_shift	= 2,
> -	},
>  	[pbn_omegapci] = {
>  		.flags		= FL_BASE0,
>  		.num_ports	= 8,
> @@ -3634,6 +3626,7 @@ static const struct pci_device_id blacklist[] =
> {
>  	{ PCI_VDEVICE(INTEL, 0x0f0c), },
>  	{ PCI_VDEVICE(INTEL, 0x228a), },
>  	{ PCI_VDEVICE(INTEL, 0x228c), },
> +	{ PCI_VDEVICE(INTEL, 0x0936), },
>  	{ PCI_VDEVICE(INTEL, 0x9ce3), },
>  	{ PCI_VDEVICE(INTEL, 0x9ce4), },
>  };
> @@ -5303,12 +5296,6 @@ static struct pci_device_id serial_pci_tbl[] =
> {
>  		pbn_ce4100_1_115200 },
>  
>  	/*
> -	 * Intel Quark x1000
> -	 */
> -	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_QRK_UART,
> -		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
> -		pbn_qrk },
> -	/*
>  	 * Cronyx Omega PCI
>  	 */
>  	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_CRONYX_OMEGA,

Andy.

Could you please add CONFIG_SERIAL_8250_LPSS when
 CONFIG_X86_INTEL_QUARK is true for my "Reviewed-by" to this patch ?

I don't see that

---
bod